Asked by Trish Goal
Define the function f(x)=2x-5. For what value of x is f(x) equal to f^-1(x)? Thank you!
Answers
Answered by
Steve
f^-1(x) = (x+5)/2
so, you want x where
2x-5 = (x+5)/2
x=5
so, you want x where
2x-5 = (x+5)/2
x=5
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