Consider the following. f(x) = (x² + 6x + 9) (x-3) (a) Find the derivative of the function, and check your work by graphing both your calculated derivative and the numerical derivative of the function. f'(x) = (b) Use your graph of the derivative to find points where the original function has horizontal tangent lines. (Enter your answers as a comma-separated list.) (c) Use a graphing calculator to graph the function and indicate the points found in part (b) on the graph. y y y 40H 40 40K 20 20 J V N Y X X X -5 5 -5 5 5 -20 -20 -20 -40 -40 -40- -40k X Ⓡ

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter4: Calculating The Derivative
Section4.2: Derivatives Of Products And Quotients
Problem 37E
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Consider the following.
f(x) = (x² + 6x + 9) (x − 3)
(a) Find the derivative of the function, and check your work by graphing both your calculated derivative and the numerical derivative of the function.
f'(x) =
(b) Use your graph of the derivative to find points where the original function has horizontal tangent lines. (Enter your answers as a comma-separated list.)
x =
(c) Use a graphing calculator to graph the function and indicate the points found in part (b) on the graph.
y
y
y
40
40
40
40+
20
20
20
20
J K N Y
NY
X
5
-5
-5
5
-5
5
-5
-201
- 20
-20
- 20
-40
- 40
- 40
-40
X
y
5
X
Transcribed Image Text:Consider the following. f(x) = (x² + 6x + 9) (x − 3) (a) Find the derivative of the function, and check your work by graphing both your calculated derivative and the numerical derivative of the function. f'(x) = (b) Use your graph of the derivative to find points where the original function has horizontal tangent lines. (Enter your answers as a comma-separated list.) x = (c) Use a graphing calculator to graph the function and indicate the points found in part (b) on the graph. y y y 40 40 40 40+ 20 20 20 20 J K N Y NY X 5 -5 -5 5 -5 5 -5 -201 - 20 -20 - 20 -40 - 40 - 40 -40 X y 5 X
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