8. The function f(x) = 4x + 3 is one-to-one. a. Find an equation for f, the inverse function. b. 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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8. The function f(x) = 4x+3 is one-to-one.
a. Find an equation for f1, 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.)
A. f(x) =
B. f(x) =
, for x2
for xs
OC. f'(x) =
D. f(x) =
for all x
, for x#
b. Verify that the equation is correct.
f(1"(x) = f(
and
Substitute.
Simplify.
The equation is (1)-
(1)
verified.
not verified.
Transcribed Image Text:8. The function f(x) = 4x+3 is one-to-one. a. Find an equation for f1, 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.) A. f(x) = B. f(x) = , for x2 for xs OC. f'(x) = D. f(x) = for all x , for x# b. Verify that the equation is correct. f(1"(x) = f( and Substitute. Simplify. The equation is (1)- (1) verified. not verified.
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