SOLUTION: If f(x)=0.2x-4, then what is f^-1(x)?

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Question 672654: If f(x)=0.2x-4, then what is f^-1(x)?
Answer by ReadingBoosters(3246) About Me  (Show Source):
You can put this solution on YOUR website!
f(x) = .2x - 4
y = .2x - 4
y + 4 = .2x
y%2F.2+%2B+4%2F.2+=+x
...
f%5E-1%28x%29+=+highlight_green%28x%2F.2+%2B+20%29
.....................
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