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nkemjikaade139

your answer is a ok i hope this helpful

Eureka1Fa

First off it's D. How you prove it is by doing y = 2x + 5 ( f(x) represents y)

then from there just treat it like an algebraic equation trying to find x.

y = 2x + 5

y - 5 = 2x

y - 5 / 2 = x

f^-1(x)= y - 5 / 2


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