hemmothewemo96 hemmothewemo96
  • 02-02-2018
  • Mathematics
contestada

if f(x)=9x, which of the following is the inverse of f(x)

A) f^-1(x)=9/x

B) f^-1(x)=x-9

C) f^-1(x)=x+9

D) f^-1(x)=x/9


PLEASE HURRY!!!

Respuesta :

aawib59p3jezl
aawib59p3jezl aawib59p3jezl
  • 02-02-2018
I think it's D cus the inverse of 2 is also 1 over 2
Answer Link
wifilethbridge wifilethbridge
  • 21-05-2019

Answer:

[tex]f^{-1}x=\frac{x}{9}[/tex]

Step-by-step explanation:

Given : [tex]f(x)=9x[/tex]

To Find: Inverse of f(x)

Solution:

[tex]y=9x[/tex]

Replace x with y and y with x.

[tex]x=9y[/tex]

[tex]\frac{x}{9}=y[/tex]

[tex]\frac{x}{9}=f^{-1}x[/tex]

Thus the inverse is [tex]f^{-1}x=\frac{x}{9}[/tex]

Hence the inverse of [tex]f(x)=9x[/tex] is  [tex]f^{-1}x=\frac{x}{9}[/tex]

Answer Link

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