For the function defined by f(x)=5x-4, find a formula for f^-1(x). My answer is f^-1(x)= 1 divided by 5x-4, is this right. thanks for checking.
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doesn't mean .
Think of it this way:
If then the inverse function is denoted and is just the expression with the x and y switched, and then solved for y.
Switching y and x, you get: .
Isolate the y to get:
I see now where I was wrong. thanks for checking my answer.
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