7. The function f(x) = x+7 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.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter9: Quadratic Functions And Equations
Section9.6: Solving Quadratic Equations By Using The Quadratic Formula
Problem 64PFA
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7. The function f(x) = x + 7 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.)
OA. f(x) =
for xs
B. f (x) =
, for x2
OC. f(x) =
OD. f 'x) =
for all x
, for x#
b. Verify that the equation is correct.
t(t(x) = f(
f(f(x)) = t1(
and
Substitute.
Simplify.
The equation is (1).
(1) O not verified.
verified.
Transcribed Image Text:7. The function f(x) = x + 7 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.) OA. f(x) = for xs B. f (x) = , for x2 OC. f(x) = OD. f 'x) = for all x , for x# b. Verify that the equation is correct. t(t(x) = f( f(f(x)) = t1( and Substitute. Simplify. The equation is (1). (1) O not verified. verified.
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