SOLUTION: Find the domain of f(x)^-1 if f(x)=4x-8 A. x≠ 1/4 B. x≠ -4 C. x≠ 0 D. All real numbers

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: Find the domain of f(x)^-1 if f(x)=4x-8 A. x≠ 1/4 B. x≠ -4 C. x≠ 0 D. All real numbers       Log On


   

Question 762520: Find the domain of f(x)^-1 if f(x)=4x-8
A. x≠ 1/4

B. x≠ -4

C. x≠ 0

D. All real numbers
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

f%28x%29%5E-1 if f%28x%29=4x-8
x=4f%28x%29-8
x%2B8=4f%5E_1%28x%29
x%2F4%2B8%2F4=f%5E-1%28x%29
%281%2F4%29x%2B2=f%5E-1%28x%29
domain:
D. All real numbers