Respuesta :

Challenge1234
 y= x/4 -3 which is your inverse function! :)
newing7
Basically you swap the variables.
f(x)=4x-12
y = 4x - 12
SWAP
x = 4y - 12
Now solve for y
X = 4y - 12
x + 12 = 4y
X/4 + 3 = y

The inverse is y = x/4 + 3

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