Show that f(x) =x and t 11 -x are inverses.

Intermediate Algebra
19th Edition
ISBN:9780998625720
Author:Lynn Marecek
Publisher:Lynn Marecek
Chapter10: Exponential And Logarithmic Functions
Section10.1: Finding Composite And Inverse Functions
Problem 10.17TI: Verify the inverse of the function f(x)=3x25.
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Which option ?

5
-x and f(x) =
11
11
x are inverses.
Show that f(x) =
5
5
-x and
11
To show that
are inverses, you should show that:
11
5
O A. (f+f-1) (x) = (t-1 +t) (x) = x
O C. (fot"1) (*) = (1¯1of) (x)=x
O B. (tof) (x) = (1¯o1) x)=1
O D. (f.f-1) (x) = (r-1-t) (x) = 1
Transcribed Image Text:5 -x and f(x) = 11 11 x are inverses. Show that f(x) = 5 5 -x and 11 To show that are inverses, you should show that: 11 5 O A. (f+f-1) (x) = (t-1 +t) (x) = x O C. (fot"1) (*) = (1¯1of) (x)=x O B. (tof) (x) = (1¯o1) x)=1 O D. (f.f-1) (x) = (r-1-t) (x) = 1
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We need to show that f(x)=511x and f-1(x)=115x

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