The function f(x)=x3+5 is​ one-to-one.   a. Find an equation for f−1​, the inverse function. b. Verify that your equation is correct by showing that ff−1(x)=x and f−1(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)=x3+5
is​ one-to-one.
 
a. Find an equation for
f−1​,
the inverse function.
b. Verify that your equation is correct by showing that
ff−1(x)=x
and
f−1(f(x))=x.
The function f(x) = x³ + 5 is one-to-one.
a. Find an equation for f1, the inverse function.
b. Verify that your equation is correct by showing that f(f¹(x)) =x and f¹(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 all x
OB. f¹(x) =
for x ≥
F¹(x)=\
O C.
OD. f¹(x) =
for x #
The equation is
for x ≤
b. Verify that the equation is correct.
f(f ¹(x))
:0
and
f¹(f(x))
f¹0
Substitute.
Simplify.
Transcribed Image Text:The function f(x) = x³ + 5 is one-to-one. a. Find an equation for f1, the inverse function. b. Verify that your equation is correct by showing that f(f¹(x)) =x and f¹(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 all x OB. f¹(x) = for x ≥ F¹(x)=\ O C. OD. f¹(x) = for x # The equation is for x ≤ b. Verify that the equation is correct. f(f ¹(x)) :0 and f¹(f(x)) f¹0 Substitute. Simplify.
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