For which function is f(x) not equal to f-1(x)? (NEED THIS TO GRADUATE)

A. f(x)=2-x
B. f(x)=2/x
C. f(x)=-x
D f(x)=2x

Question

20-12-2017
Mathematics

contestada

For which function is f(x) not equal to f-1(x)? (NEED THIS TO GRADUATE)

A. f(x)=2-x
B. f(x)=2/x
C. f(x)=-x
D f(x)=2x

Respuesta :

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andriansp andriansp · Answer 1 · 2017-12-20T19:51:48+01:00

andriansp andriansp

20-12-2017

The answer would be: D. f(x)=2x
The f-1(x) is also called as an inverse function. To find the inverse function, you just need to switch the y variable with the x variable. The inverse function of f(x)=2x would be
y=2x
x'=2y'
y'= 1/2 x'

The inverse function is different with f(x)

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For which function is f(x) not equal to f-1(x)? (NEED THIS TO GRADUATE) A. f(x)=2-x B. f(x)=2/x C. f(x)=-x D f(x)=2x

Respuesta :

Otras preguntas

For which function is f(x) not equal to f-1(x)? (NEED THIS TO GRADUATE)

A. f(x)=2-x
B. f(x)=2/x
C. f(x)=-x
D f(x)=2x