AP Calculus AB Summer Packet 2018

Transcription

1 AP Calculus AB Summer Packet 2018 Dear Calculus Student: To be successful in AP Calculus AB, you must be proficient at solving and simplifying each type of problem in this packet. This is a review of Algebra and Pre-Calculus. Upon returning to school in the fall, you are expected to have completed this assignment. We will correct and review during the first week of class, and then you will take a test on this content during the second week of class. Please make sure to show all work for each problem to receive full credit. Calculators are NOT ALLOWED on this assignment. Furthermore, you are expected to have memorized the formulas on the sheet attached. While 2/ of the AP Calculus test is non-calculator, you are allowed to use a calculator on 1/ of the test. Therefore, it is highly recommended that you have a TI-84 when the school-year begins, since we will not have a full classroom set. AP Calculus is a fast-paced course that is taught at the college-level. Therefore, you must maintain all pre-requisite skills. We will not have time to spend re-teaching the content in this packet. Make sure you are comfortable with this material. Enjoy!

2 Formulas that must be memorized:

3 Simplify each expression. 1. 2x2 +7x 4 5x 2 +20x k 1+ 5 k. a a+1 +1 a 1 a + 1 a x+h 1 x h Factor each expression. 5. (x 4) 2 + (x 5)(2)(x 4)() 6. (5 2x)()(7x 8) 2 (7) + (7x 8) ( 2) 7. 5(2x + 1) 2 + (5x 6)(2)(2x + 1)(2) For each function, find the vertical asymptotes, horizontal asymptotes, and the x- and y- coordinates of any holes. 8. f(x) = x2 x 6 x f(x) = 4x2 9 2x+ 10. f(x) = x2 6x 24 5x 2 26x+5 Graph each absolute value function. Then write the absolute value function as a piecewise function that is formed by two lines of the form y = mx + b. 11. f(x) = 2x f(x) = 1 x 4

4 Simplify. 1. 4x 2x 2 + x 14. x 2 +5x x Solve each equation for x. 17. ax + b = (x a) 18. x = (5x + )(k + 1) 19. 2a x 1 = a b Use synthetic division. 20. x 4x 2 5 is divided by x 21. x 4 2x 1 is divided by x x x 2 8x + 4 is divided by x 2 Simplify. 2. x 5 2 x (2x 1) (2x 1) The perimeter of a triangular plot of land is 2400 feet. The longest side is 200 ft less than twice the shortest. The middle side is 200 ft less than the longest side. Find the lengths of the three sides of the triangular plot. 26. Let x represent one of two positive numbers whose sum is 0. a) Represent the other number in terms of x. b) What are the restrictions on x? c) Write the function f(x) the represents the product of these two numbers. d) Find the two numbers if their product equals 104.

5 Find the inverse of each function. 27. y = x y = 1 x 29. If f() = 2, what is the value of f 1 ( 2)? Condense each logarithm. 0. 2log (x 4) log x log (x + 2) 1. log a m + 2log a n + log a p log a n Expand each logarithm. 2. log 4 x5 y 2 w 6. log x2 x a (2x 1) 4. Write the equation of the line that passes through the point ( 9, 5) and has a slope of 2. Write this equation in point-slope form. 5. An object is propelled vertically upward with an initial velocity of 20 meters/second. The distance s (in meters) of the object from the ground after t seconds is s = 4.9t t. (You may use a calculator for this problem.) a) When will the object be 15 meters above the ground? b) When will the object strike the ground? c) What is the maximum height? (hint: vertex) 6. The circumference of a circle is directly proportional (or varies directly) to the radius. A circle with a radius of 7 cm has a circumference of 4.96 cm. Find the circumference of the circle if the radius changes to 11 cm. (You may use a calculator for this problem.) 7. If the half-life of a radioactive substance is years, and there is initially 600 grams, how much of the substance will be present after 6 years?

6 8. Use the table below to answer the following questions: a) f(g(1)) b) g(f( 1)) c) f(f( 1)) d) g(f(0)) e) f(g( 2)) x f(x) g(x) Identify the values of x at which f(x) = 0. Over which interval(s) is f(x) < 0? Over which intervals is f(x) decreasing? 40. Simplify. 41. ( ) ( ) = 42. Solve for y. xy + 7y y 12x 2 y 21y = Write an equation of the line that passes through (2, f(2)) and (, f( )). f(x) = 2x 2 7x Solve the equation for x. ( x) x 4 = 1

7 45. sin cos 47. tan sin tan _ csc cos cos 4 5. tan cos sin tan (1) 57. f(x) = x for 10 x < 2 for x < 1 x + 8 for x 1 Is this function continuous at x =? Is this function continuous at x = 1? Graph the function. For problems #58-59, use the function f(x) = 2x 2 5x Find f(x+h) f(x) h. 59. Find the average rate of change from x = 2 to x = 5.

8 Sketch a graph of each function and state its domain. 60. f(x) = x f(x) = x f(x) = x 8 6. f(x) = ln x 64. f(x) = e x x 2 + y 2 = f(x) = x 2 2x f(x) = 1 x f(x) = x 69. f(y) = y x = y y = sin x 72. y = 1 2x 1 7. y = cos x 74. y = tan x 75. Use long division. x4 x 4x 2 +12x 2x 2 +1 Use trigonometric identities to simplify. 76. cos 2 θ sin 2 θ sinθ cosθ 77. sin 2 θ(csc 2 θ 1) sin2 θ cosθ 79. tan θ sec θ Solve each equation. 80. sin x = sin 2x 81. sin x = cos 2x = 2 8. x 2 2x 8 < x 6 x + 2 < > 1 x+2