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2 votes
2 votes
Find the inverse of the function y=8x-7

User Alexander Arendar
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1 Answer

22 votes
22 votes

1) To find out the inverse function, assuming this function admits one, let's proceed with these steps:

y=8x -7 Swap x for y

x = 8y -7 Let's isolate y on the left side subtracting 8y from both sides

x -8y = -7 Add -x to both sides

-8y = -7 -x Divide both sides by -8

y =7/8 +x/8 Write the proper notation


f^(-1)(x)\text{ =}(x)/(8)+(7)/(8)

2) And that's the answer

User Kevin Buchs
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