Find an equation for f'(x), the inverse function. Verify that your equation is correct by showing that f(f¯'(x)) = x and f (f(x)) = x.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter5: Inverse, Exponential, And Logarithmic Functions
Section5.1: Inverse Functions
Problem 55E
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The function f(x) = x + 9 is one-to-one.
a. Find an equation for f(x), the inverse function.
b. Verify that your equation is correct by showing that f (f(x)) = x and f (f(x)) = x.
a. Select the correct choice below and fill in the answer box(es) to complete your choice.
(Simplify your answer. Use integers or fractions for any numbers in the expression.)
O A. f1(x) =
for xs
O B. f-1(x) =
for x#
c. f1(x) = x- 9 , for all x
O D. f-1(x) =
for x2
b. Verify that the equation is correct.
= fO
f1 (f(x)) =
f-1(
and
Substitute.
Simplify.
%3D
Transcribed Image Text:The function f(x) = x + 9 is one-to-one. a. Find an equation for f(x), the inverse function. b. Verify that your equation is correct by showing that f (f(x)) = x and f (f(x)) = x. a. Select the correct choice below and fill in the answer box(es) to complete your choice. (Simplify your answer. Use integers or fractions for any numbers in the expression.) O A. f1(x) = for xs O B. f-1(x) = for x# c. f1(x) = x- 9 , for all x O D. f-1(x) = for x2 b. Verify that the equation is correct. = fO f1 (f(x)) = f-1( and Substitute. Simplify. %3D
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