SOLUTION: find the inverse function of f(x)=4x+2

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Question 242720: find the inverse function of f(x)=4x+2
Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
To find the inverse of a function, there are TWO steps:

Step 1: Given that y =4x+2, INTERCHANGE the x and y.
x=4y+2

Step 2: SOLVE for y.
x=4y+2
x-2=4y
4y=x-2

Divide both sides by 4:
y=%28x-2%29%2F4 or y=%28x%2F4%29-%281%2F2%29

Dr. Robert J. Rapalje, Retired
Seminole State College of Florida
Altamonte Springs Campus