F(x) = log base 3 (x+1) what is f^-1 (2)

asked Mar 12, 2018 171k views

5 votes

by Mmln

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42 girls +63 boys =105 altogether. I need you to guide me thru the process.
1+5 =6.

Jared Reeves answered Mar 14, 2018

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4 votes

F(x) = log3 (x + 1)

so (x + 1) = 3^(F(x)) ( by the definition of logarithms)

x = 3^(Fx) - 1

F-1(x) = 3^x - 1

F(-1 (2) = 3^2 - 1 = 8

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