Why is the Calc BC curve so generous? Just curious, especially knowing that it is generally more advanced students that take the course, so I would expect it to be more strict/harsh. Imagine you gave a test with 100 questions. You needed 70 correct to show you mastered the concepts on the test. Jul 23, 2021 · AP Calculus BC students generally performed well across units but found Unit 10 (Infinite Sequences and Series) the most challenging, followed by Unit 9 and Unit 6. Free-Response Section: The strongest results were typically on Question 4, the graphical analysis. 35% of students earned 7–9 points out of 9 possible. AP Calculus BC solved exams. Unit 12. ... Area between curves that intersect at more than two points (calculator-active) Get 3 of 4 questions to level up! Quiz 2.A function f has derivatives of all orders for all real numbers x. A portion of the graph of f is shown above, along with the line tangent to the graph of f at x = 0. Selected derivatives of f at x = 0 are given in the table above. (a) Write the third-degree Taylor polynomial for f …The AP Calculus BC exam assesses high school students’ ability to apply the content and skills learned in the AP Calculus course. The content of the AP Calculus BC exam is pulled straight from the study units that students learn in the AP Calculus BC course: Unit 1: Limits and Continuity. Unit 6: Integration and Accumulation of Change.Answers given as a decimal approximation should be correct to three places after the decimal point. Within each individual free-response question, at most one point is not earned for inappropriate rounding. A particle moving along a curve in the xy -plane is at position ( x( t ) , y( t ) ) at time t > 0.According to the AP® Calculus BC Course Description, students in Calculus BC are required to know: • Analysis of planar curves given in parametric form and vector form, including ... Sketch the curve defined by the parametric equations and eliminate the parameter. 2. Find dy dx dy dx and 2 and 2 2 2 and evaluate them for a given value of t. AP® CALCULUS AB/CALCULUS BC 2015 SCORING GUIDELINES. feet per hour, t is measured in hours, and 0 ≤ t ≤ 8. The pipe is partially blocked, allowing water to drain out the other end of the pipe at a rate modeled by D ( t ) = − 0.04 t 3 + 0.4 t 2 + 0.96 t cubic feet per hour, for 0 ≤ t ≤ 8. There are 30 cubic feet of water in the pipe ... AP® Calculus BC Exam SECTION I: Multiple-Choice Questions DO NOT OPEN THIS BOOKLET UNTIL YOU ARE TOLD TO DO SO. Instructions Section I of this examination contains 45 multiple-choice questions. Fill in only the ovals for numbers 1 through 45 on your answer sheet. CALCULATORS MAY NOT BE USED IN THIS PART OF THE … 10. [1990 BC 4] Let R be the region inside the graph of the polar curve r = 2 and outside the graph of the polar curve r = 2(1 – sin( θ)). (a) Sketch the two curves in the xy -plane. (b) Find the area of R. 11. [1984 BC 4] Consider the curves r = 3cos( θ) and r = 1 + cos( θ). (a) Sketch the two curves in the xy -plane. AP Calculus BC students generally performed well across units but found Unit 10 (Infinite Sequences and Series) the most challenging, followed by Unit 9 and Unit 6. Free-Response Section: The strongest results were typically on Question 4, the graphical analysis. 35% of students earned 7–9 points out of 9 possible. Hi all, here's a score chart for the Calc BC exam (using the 2023 data). The overall exam score is based 71% on AB topics and 29% on BC-only topics, but the subscore is based only on the AB questions. According to this graph, the absolute minimum you need to get correct on the BC exam in order to get a 5 on both is ~64% on AB-level questions ... Google Classroom. Let R be the region in the first and second quadrants enclosed by the polar curve r ( θ) = sin 2. ( θ) , as shown in the graph. y x R 1 1. Which integral represents the area of R ? Choose 1 answer: ∫ 0 2 π 1 2 sin 4. ( θ) d θ. A. ∫ 0 2 π 1 2 sin 4. ( θ) d θ. ∫ 0 2 π 1 2 sin 2. ( θ) d θ. B. ∫ 0 2 π 1 2 sin 2. ( θ) d θ.Most often on the AP Calculus BC exam, your job will be to interpret the model. You should be able to find out characteristics of the model without explicitly solving for y. Based on the form of the …• The exact value of ( ) 150 0 1 150 ∫ g t dt is 12 25sin . 125 16 • A response may present the average value formula in single or multiple steps. For example, the following response earns both points: ( ) AP® Calculus AB/BC 2021 Scoring Guidelines . Part A (AB or BC): Graphing calculator required Question 1 9 points . General Scoring Notes . Answers (numeric or algebraic) need not be simplified. Answers given as a decimal approximation should be correct to three places after the decimal point. Within each individual free-response question, at ... Part A (AB or BC): Graphing Calculator Required. 0 ≤ t ≤ 12, where R(t) is measured in vehicles per hour and t is the number of hours since 7:00 a.m. (t = 0). Values of R(t) for selected values of t are given in the table above. Use the data in the table to approximate Rʹ(5). Show the computations that lead to your answer.Learn AP®︎ Calculus BC—everything from AP®︎ Calculus AB plus a few extra goodies, such as Taylor series, to prepare you for the AP®︎ test. The graphs of the polar curves r = 2 and r = 3 + 2cos q are shown in the figure below. The curves intersect. q 2p q 4p. Let R be the region that is inside the graph of r = 2 and also inside the graph of r = 3 + 2 cos q, as indicated above. Find the area of R. A particle moving with nonzero velocity along the polar curve given by r = 3 + 2 cos q ... 1 360 B ( x ) 2 2 the cross section at x. The expression is the volume in mm3 of the blood vessel between 125. mm and 275 mm from the end of the vessel. (60, 180) and B a ( c ) 0 for some c 2 in 2 = (240, 360). The MVT applied to B a ( x ) shows. B a ( x ) 0 at some x in (0, 360). 0. none exists.The commentary below the boxed work is correct but not required to earn any points. Sample: 2C Score: 3. The response earned 3 points: 2 points in part (a), no points in part (b), 1 point in part (c), and no points in part. 2. (d). In part (a) the response earned the first point for the integral 3 d .Your score on the grading curve: Why is my grade curved? Once the total composite scores are calculated, Collegeboard curves them differently each year to keep consistent standards and regular pass rates, which means we …For more information about vector functions, check out this AP Calculus BC Review: Vector-Valued Functions. Example — Velocity. Find the velocity vector at t = 1 for an object traveling according to the parametric function x = t 2 – 2t + 1, y = –t 2 + 2. First find the derivative of each component function. v(t) = (2t – 2, -2t). The predicted curve for 2019 is about 57% for a 5 so a 61 should be good. It seemed like a hard test, but was it that hard? The only parts that seemed overly difficult were non-calc mc and non-calc frq. A typical curve is around 60% for a 5 so it’s really not that different. Show Calculator. Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere.The trapezoidal sum uses the shapes of trapezoids to estimate the area under a curve. To calculate add up the y values, multiplying the middle y values by two, and multiply by half of the distance between x values. The trapezoidal sum is a closer approximation than the Riemann Sums. If the graph is concave up then the trapezoidal sum is an ...4. The graph of the polar curve 𝑟=3−2sin(2θ) for 0 Qθ<2π is shown to the right. (You may use your calculator for all sections of this problem.) a) Write in terms of θ an expression for 𝑑 𝑑 , the slope of the tangent line to the graph of 𝑟. b) …Let's consider one of the triangles. The smallest one of the angles is dθ. Call one of the long sides r, then if dθ is getting close to 0, we could call the other long side r as well. The area of the triangle is therefore (1/2)r^2*sin (θ). Since θ is infinitely small, sin (θ) is equivalent to just θ. Then we could integrate (1/2)r^2*θ ...Visit the College Board on the Web: www.collegeboard.org. AP Central is the oficial online home for the AP Program: apcentral.collegeboard.org. 1. 300 (a) ∫ r ( t ) dt = 270. 0. According to the model, 270 people enter the line for the escalator during the time interval 0 ≤ t ≤ 300. (b) 20 + ∫ ( 300 ( 300.Your score on the grading curve: Why is my grade curved? Once the total composite scores are calculated, Collegeboard curves them differently each year to keep consistent standards and regular pass rates, which means we …Tangents to polar curves. Google Classroom. Consider the polar curve r = 2 cos. . ( θ) for 0 ≤ θ < π . At which values of θ does the graph of r have a horizontal tangent line?Based on an AP fact-check of last night's democratic debate, here are the big money flashes that were made by the presidential candidates. By clicking "TRY IT", I agree to receive ...AP Calculus BC Lesson 11.4 Polar Calculus 1. Consider the polar function r ... 11. [1984 BC 4] Consider the curves r = 3cos( θ) and r = 1 + cos( θ). (a) Sketch the two curves in the xy -plane. (b) Find the area of the region inside the curve r = 3cos( θ)Videos: Introduction to one-dimensional motion with calculus. Interpreting direction of motion from position-time graph. Interpreting direction of motion from velocity-time graph. Interpreting change in speed from velocity-time graph. Worked example: Motion problems with derivatives. Exercises:No matter what course you are taking, we are a community that helps students earn college credit! AP Calculus BC - 2024 Exam Discussion Thread. AP CALC BC (BIG CHILDREN) DISCUSS IT RIGHT HERE!! Anyone else get B and C repeating on calc mcq. YEAH IT ALTERNATED LIKE FOR 5 QUESTIONS OMG.• The exact value of ( ) 150 0 1 150 ∫ g t dt is 12 25sin . 125 16 • A response may present the average value formula in single or multiple steps. For example, the following response earns both points: ( )AP Calculus AB and BC Course and Exam Description. About AP. College Board’s Advanced Placement® Program (AP®) enables willing and academically prepared students to pursue college-level studies—with the opportunity to earn college credit, advanced placement, or both—while still in high school. Through AP courses in 38 subjects, each ...Write your responses to this question only on the designated pages in the separate Free Response booklet. Write your solution to each part in the space provided for that part. 2. A particle moving along a curve in the xy-plane is at position ( x ( t ) , y ( t ) ) at time t 0 . The particle moves in. According to the AP® Calculus BC Course Description, students in Calculus BC are required to know: • Analysis of planar curves given in parametric form and vector form, including velocity and acceleration vectors • Derivatives of parametric and vector functions • The length of a curve, including a curve given in parametric form The slope can be dy dy dt found by evaluating t dx = dx dt at 2. Part (b) asked students to find the x-coordinate of the particle’s =. 4. position at time t 4. This is calculated using the expression x x x t dt. = ( ) = 4 ( ) + 0. 0 ′ ( . Part (c) asked for the ) speed of the particle at time t 4 seconds. AP® CALCULUS AB/CALCULUS BC 2014 SCORING GUIDELINES. 1. Grass clippings are placed in a bin, where they decompose. For 0 ≤ t ≤ 30, the amount of grass clippings remaining in the bin is modeled by A ( t ) = 6.687 ( 0.931 ) t , where A ( t ) is measured in pounds and t is measured in days. Find the average rate of change of A ( t ) over the ... NFTs are one of the most talked about topics in crypto, which is why we’re excited to have Nicole Muniz, CEO of Yuga Labs, onstage at TC Sessions: Crypto. As the NFT ecosystem cont...AP Calculus BC Past Exam Questions. Free-Response Questions. Download free-response questions from past exams along with scoring guidelines, sample responses from exam takers, and scoring distributions.a region bounded by curves described in polar coordinates. Parts (b) and (c) involved the behavior of a particle. moving with nonzero velocity along one of the polar curves (and with constant angular velocity d θ = 1, dt. although students did not need to know that to answer the questions). Students were asked to compute dr and dt dy at a ...AP Latin. 🇪🇸. AP Spanish Language. 💃🏽. AP Spanish Literature. Predict your AP score with every rubric point! Ace your AP exams by learning exactly what it takes to get a 5.AP Latin. 🇪🇸. AP Spanish Language. 💃🏽. AP Spanish Literature. Predict your AP score with every rubric point! Ace your AP exams by learning exactly what it takes to get a 5.The trapezoidal sum uses the shapes of trapezoids to estimate the area under a curve. To calculate add up the y values, multiplying the middle y values by two, and multiply by half of the distance between x values. The trapezoidal sum is a closer approximation than the Riemann Sums. If the graph is concave up then the trapezoidal sum is an ...The curve for the AP Calculus BC exam can be quite generous, as it's meant to account for the overall difficulty of the test. Though the specific curve can vary from year to year, it generally follows a similar pattern, with scores of 4 or 5 often requiring around 65-70% of the total points or above. To tackle the AP Calc BC exam, here are a few study tips and …Resources. AP Calculus BC explores the principles, techniques, and practical uses of differential and integral calculus, encompassing subjects like parametric, polar, and vector functions, as well as series. Click through our free AP Calculus BC study guides and Calc BC flashcards below: The only resource you need to get a 5 on the AP Calculus ...Let's consider one of the triangles. The smallest one of the angles is dθ. Call one of the long sides r, then if dθ is getting close to 0, we could call the other long side r as well. The area of the triangle is therefore (1/2)r^2*sin (θ). Since θ is infinitely small, sin (θ) is equivalent to just θ. Then we could integrate (1/2)r^2*θ ...You’ll solve parametrically defined functions, vector-valued functions, and polar curves using applied knowledge of differentiation and integration. You’ll also deepen your understanding of straight-line motion to solve problems involving curves.AP Exams - May 2020 (continued) * This table reflects 4,751,957 AP Exams taken by 2,642,630 students from 22,152 secondary schools. ** In 2020, the AP Studio Art Program was renamed AP Art and Design. The course names are Drawing, 2-D Art and Design, and 3-D Art and Design. *** Standard students generally receive most of their foreign …What is the average AP® Statistics score? The average score is different for every exam because of variation in students taking the exam and question difficulty. The averages for the past 7 years were 2.86 in 2014, 2.80 in 2015, 2.88 in 2016, 2.72 in 2017, 2.88 in 2018, 2.87 in 2019 and 2.95 in 2020. A simple average of these scores over the ...Write your responses to this question only on the designated pages in the separate Free Response booklet. Write your solution to each part in the space provided for that part. 2. A particle moving along a curve in the xy-plane is at position ( x ( t ) , y ( t ) ) at time t 0 . The particle moves in.Dr. Debra Rose Wilson is a professor, researcher, and holistic healthcare practitioner. She teaches graduate-level psychology and nursing courses. Dr. Wilson has over 200 publicati...AP®︎/College Calculus BC. Course: AP®︎/College Calculus BC > Unit 9. Lesson 3: Finding arc lengths of curves given by parametric equations.Students needed to set up an equation for the distance between the curves in the first quadrant, D = 3 − ( 3 − 2sin ( 2 θ ) ) , and then evaluate the derivative of D at the required value. Finally, in part (d) students were given that d θ = 3 and were asked to find the value of dr θ =π dt dt at 6 . Students had to.Bonobos, like people, prefer a little attitude. Scientists looking to understand the evolutionary roots of human behavior have frequently looked to bonobos, the great ape native to...Write your solution to each part in the space provided for that part. 2024 College Board. 2. A particle moving along a curve in the xy-plane has position ( x ( t ) y ( t )) at time t seconds, where x ( t ) and y ( t ) are measured in centimeters. It is known that x ( …36. 2012 The College Board. Visit the College Board on the Web: www.collegeboard.org. AP Exam Instructions. the calculator to remove exam questions and/or answers from the room may result in the cancellation of AP Exam scores. The AP Calculus AB Exam and the AP Calculus BC Exam should be administered simultaneously.Apr 17, 2021 ... ... AP Calculus BC 2019 Free Response question 2. I highlight some key concepts for approaching the area under the polar curve question and show ...Mx. Francis Kuehnle is a registered nurse whose main areas of interest include therapeutic communication, compassionate care of patients experiencing psychosis, and LGBTQIA+ langua...Let g be the function given by g x ( ) = ∫ f t dt . − 4 ( ) For each of g 1 , ( − ) g′ ( 1 , and g′′ 1 , find ) the − ) ( − value or state that it does not exist. For the function g defined in part (a), find the x-coordinate of each point of inflection of the graph of g on the open interval − 4 x …AP®︎/College Calculus BC. Course: AP®︎/College Calculus BC > Unit 9. Lesson 3: Finding arc lengths of curves given by parametric equations.AP Latin. 🇪🇸. AP Spanish Language. 💃🏽. AP Spanish Literature. Predict your AP score with every rubric point! Ace your AP exams by learning exactly what it takes to get a 5.The predicted curve for 2019 is about 57% for a 5 so a 61 should be good. It seemed like a hard test, but was it that hard? The only parts that seemed overly difficult were non-calc mc and non-calc frq. A typical curve is around 60% for a 5 so it’s really not that different.What is the average AP® Statistics score? The average score is different for every exam because of variation in students taking the exam and question difficulty. The averages for the past 7 years were 2.86 in 2014, 2.80 in 2015, 2.88 in 2016, 2.72 in 2017, 2.88 in 2018, 2.87 in 2019 and 2.95 in 2020. A simple average of these scores over the ...The electrical load of a home basically tells you how much electricity your home is using. This is an approximation of your usage, not an exact number. The exact amount can only ...Using the First Derivative Test to sketch a function curve Ex) Find the critical numbers of the function: f (x) = 6x4 +12x3 +20 Find the domain and intercepts of the function. Find the open interval(s) on which the function is increasing or decreasing. Find any relative extrema, and sketch the function without using a calculator.See how students performed on each AP Exam for the exams administered in 2022. 2023 AP score distribution tables show the percentages of 1s, 2s, 3s, 4s, and 5s for each AP subject for all AP students.AP Calculus AB focuses on topics that are taught in the college-equivalent first-semester calculus class. AP Calculus BC focuses on topics covered in both first- and second-semester calculus classes. All topics in the eight units of AP Calculus AB are also included in AP Calculus BC. However, AP Calculus BC contains two additional units (Units ...AP® CALCULUS AB/CALCULUS BC 2015 SCORING GUIDELINES. feet per hour, t is measured in hours, and 0 ≤ t ≤ 8. The pipe is partially blocked, allowing water to drain out the other end of the pipe at a rate modeled by D ( t ) = − 0.04 t 3 + 0.4 t 2 + 0.96 t cubic feet per hour, for 0 ≤ t ≤ 8. There are 30 cubic feet of water in the pipe ...NO CALCULATOR ALLOWED y 5. GThe graphs of the polar curves r = 4 and r = 3 + 2 cos 0 are shown in the igure above. The curves intersect n 5n at 0 = - and 0 = -. 3 3 (a) GLet R be the shaded region that is inside the graph of r = 4 and also outside the graph of r = 3 + 2 cos B, as shown in the igure above. Though the specific curve can vary from year to year, it generally follows a similar pattern, with scores of 4 or 5 often requiring around 65-70% of the total points or above. To tackle the AP Calc BC exam, here are a few study tips and strategies: 1. Understand the format: The AP Calculus BC exam is divided into two sections. We can refer to the AP® Student Score Distributions released every year by the College Board. The current version of AP® Physics 1 has only been offered since the 2014-2015 school year. These reports show us that the mean score in 2015 was 2.32, in 2016 was 2.33, in 2017 was 2.40, in 2018 was 2.36, in 2019 was 2.51, and 2.65 in 2020.We can refer to the AP® Student Score Distributions released every year by the College Board. The current version of AP® Physics 1 has only been offered since the 2014-2015 school year. These reports show us that the mean score in 2015 was 2.32, in 2016 was 2.33, in 2017 was 2.40, in 2018 was 2.36, in 2019 was 2.51, and 2.65 in 2020.Polar functions work by taking in an angle and outputting a distance/radius at that angle. 2. On the unit circle, the y-value is found by taking sin (θ). Notice the r isn’t in the formula because on the unit circle r=1. Now, for polar functions, r changes, so to get the y-value you have to multiply r by sin (θ).The Course at a Glance provides. useful visual organization of the AP Calculus AB and AP Calculus BC curricular components, including: Sequence of units, along with approximate weighting and suggested pacing. Please note, pacing is based on 45-minute class periods, meeting five days each week for a full academic year.
Students needed to set up an equation for the distance between the curves in the first quadrant, D = 3 − ( 3 − 2sin ( 2 θ ) ) , and then evaluate the derivative of D at the required value. Finally, in part (d) students were given that d θ = 3 and were asked to find the value of dr θ =π dt dt at 6 . Students had to.. Lazy turtle riverfront grill and tiki bar reviews
Consider the curve given by. <x, y>=<tcos (t), tsin (t)>. This is a spiral centered on the origin, so it fails both the vertical line test and the horizontal line test infinitely many times. We use parametric equations because there are lots of curves that just can't be described by y as a function of x.Assessment Overview. The AP Calculus BC Exam assesses student understanding of the mathematical practices and learning objectives outlined in the course framework. The exam is 3 hours and 15 minutes long and includes 45 multiple-choice questions and 6 free-response questions.Apr 19, 2020 ... hard to think 10 years ago I was in hs jr year watching these videos every day. turns out this channel and khan academy were more effective ...AP® Calculus BC 2006 Scoring Guidelines Form B The College Board: Connecting Students to College Success ... Write an equation for the line tangent to the curve at position ()2, 3 .− (b) Find the acceleration vector and the speed of the object at time t = 1.The trapezoidal sum uses the shapes of trapezoids to estimate the area under a curve. To calculate add up the y values, multiplying the middle y values by two, and multiply by half of the distance between x values. The trapezoidal sum is a closer approximation than the Riemann Sums. If the graph is concave up then the trapezoidal sum is an ... Consider the curve given by. <x, y>=<tcos (t), tsin (t)>. This is a spiral centered on the origin, so it fails both the vertical line test and the horizontal line test infinitely many times. We use parametric equations because there are lots of curves that just can't be described by y as a function of x. AP Calculus BC solved exams. Unit 12. AP®︎ Calculus BC Standards mappings. Course challenge. Test your knowledge of the skills in this course. Start Course challenge. ... Area between curves that intersect at more than two points (calculator-active) Applications of integration: Quiz 2; Volumes with cross sections: squares and rectangles (intro) Buy our AP Calculus workbook at https://store.flippedmath.com/collections/workbooksFor notes, practice problems, and more lessons visit the Calculus course o... Resources. AP Calculus BC explores the principles, techniques, and practical uses of differential and integral calculus, encompassing subjects like parametric, polar, and vector functions, as well as series. Click through our free AP Calculus BC study guides and Calc BC flashcards below: The only resource you need to get a 5 on the AP Calculus ...AP Calculus BC: Extreme Values and Curve Sketching. Get a hint. What is average rate of change? Click the card to flip 👆. The slope of the secant line given by [f (x+h)-f (x)]/h. Click the card to flip 👆. 1 / 39.AP Latin. 🇪🇸. AP Spanish Language. 💃🏽. AP Spanish Literature. Predict your AP score with every rubric point! Ace your AP exams by learning exactly what it takes to get a 5.This is now we are integrating a bunch of dx's or we're integrating with respect to x. We could say, "Okay, x equals a to x equals b." Let's take the sum of the product of this expression and dx, and this is essential. This is the formula for arc length. The formula for arc length.Feb 15, 2024 · The Arc Length of a Smooth, Planar Curve and Distance Traveled is a crucial topic in AP Calculus BC that involves finding the length of a curve or the distance traveled by a particle along a curve. To find the arc length of a curve, we need to find the derivative of the curve and use the formula for arc length, S = ∫ a b 1 + [ f ′ ( x ) ] 2 ... The graphs of the polar curves r = 2 and r = 3 + 2cos q are shown in the figure below. The curves intersect. q 2p q 4p. Let R be the region that is inside the graph of r = 2 and also inside the graph of r = 3 + 2 cos q, as indicated above. Find the area of R. A particle moving with nonzero velocity along the polar curve given by r = 3 + 2 cos q ...Unit 5: Analytical Applications of Differentiation. After exploring relationships among the graphs of a function and its derivatives, you'll learn to apply calculus to solve optimization problems. Topics may include: Mean Value Theorem and Extreme Value Theorem. Derivatives and properties of functions.Oct 22, 2021 · AP Calculus AB focuses on topics that are taught in the college-equivalent first-semester calculus class. AP Calculus BC focuses on topics covered in both first- and second-semester calculus classes. All topics in the eight units of AP Calculus AB are also included in AP Calculus BC. However, AP Calculus BC contains two additional units (Units ... Based on an AP fact-check of last night's democratic debate, here are the big money flashes that were made by the presidential candidates. By clicking "TRY IT", I agree to receive ... statement “plug in 4, ” and the correct answer of 0.4444. 2022 College Board. Visit College Board on the web: collegeboard.org. AP® Calculus BC 2022 Scoring Commentary. Question 2 (continued) In part (c) the response earned the first point by using the expression ln ( 2 + t2 ) as an integrand. Adding 5 to the. Unit 5 - Curve Sketching. 5.1 Extrema on an Interval. 5.2 First Derivative Test. 5.3 Second Derivative Test. Review - Unit 5. Scoring notes: • The response must be a definite integral with correct lower and upper limits to earn this point. 5 5 • Because A ( t) = A ( t ) for 1 ≤ t ≤ 5, a response of ∫ 450 sin ( 0.62t ) dt or ∫ A ( t ) dt earns the. 1 1. point. A response missing dt or using dx is eligible to earn the point. A drum sander chucked in a drill works great for sanding curved objects, such as shelf brackets. Watch this video to find out more. Expert Advice On Improving Your Home Videos Late....