Question

SAT subject test question:
( I will post it below)

Answer 1

If \[f(x)=3^{x}\] for all real values of x and \[f ^{-1}(n)=-2\], then n=?

Answer 2

@.Sam. please help

Answer 3

when is your test ?

Answer 4

my test is this Saturday...

Answer 5

if f(x) is 3^x\[f^{-1}(x)=\log_3(x)\] so solve the equation
\[\log_3 (x)=-2\]