1. For each of the following graphs, state i. the intervals where the function is increasing ii. the intervals where the function is decreasing iii. the points where the tangent to the function is horizontal a. b. 8(x)} 20 (1, 20) 115 40 5- 0 -12-8 12 (6.5, -1) (1,-1) -10 2. Is it always true that an increasing function is concave up in shape? Explain. 3. Determine the critical points for each function. Determine whether the critical point is a local maximum or local minimum and whether or not the tangent is parallel to the x-axis. a. f(x) = -2x³ + 9x² + 20 c. h(x) = x-3 x² + 7 b. f(x) = x4 - 8x³ + 18x² + 6 d. g(x) = (x - 1) 4. The graph of the function y = f(x) has local extrema at points A, C, and E and points of inflection at B and D. If a, b, c, d, and e are the x-coordinates of the points, state the intervals on which the following conditions are true: a. f'(x) > 0 and f"(x) > 0 ↑f(x) с b. f'(x) > 0 and f"(x) < 0 c. f'(x) < 0 and f"(x) > 0 d. f'(x) < 0 and f"(x) < 0 O -5- -T 4 A a B b с D d e E
1. For each of the following graphs, state i. the intervals where the function is increasing ii. the intervals where the function is decreasing iii. the points where the tangent to the function is horizontal a. b. 8(x)} 20 (1, 20) 115 40 5- 0 -12-8 12 (6.5, -1) (1,-1) -10 2. Is it always true that an increasing function is concave up in shape? Explain. 3. Determine the critical points for each function. Determine whether the critical point is a local maximum or local minimum and whether or not the tangent is parallel to the x-axis. a. f(x) = -2x³ + 9x² + 20 c. h(x) = x-3 x² + 7 b. f(x) = x4 - 8x³ + 18x² + 6 d. g(x) = (x - 1) 4. The graph of the function y = f(x) has local extrema at points A, C, and E and points of inflection at B and D. If a, b, c, d, and e are the x-coordinates of the points, state the intervals on which the following conditions are true: a. f'(x) > 0 and f"(x) > 0 ↑f(x) с b. f'(x) > 0 and f"(x) < 0 c. f'(x) < 0 and f"(x) > 0 d. f'(x) < 0 and f"(x) < 0 O -5- -T 4 A a B b с D d e E
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter5: Inverse, Exponential, And Logarithmic Functions
Section5.1: Inverse Functions
Problem 56E
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