Question

PLEASE HELP! 20POINTS

Find the inverse of the function f(x)= 2x - 4 and show explain each step used to find the inverse.

Answer 1

f^-1(x) = 1/2x + 2

Explanation:

f(x) = 2x - 4

y = 2x - 4

y + 4 = 2x

y/2 + 4/2 = x

Switch variables.

x/2 + 2 = y

Answer 2

f^-1 (x) = 2 + x/2 ...