Question

Please help! what is the value of x when f(x)=8? The graph shows the function f(x)=2^x

Answer 1

Answer:

$f(x) = {2}^{x } \\ f(x) = 8 \\ \\ {2}^{x} = 8 \\ \\ {2}^{x } = {2}^{3} \\ \\ x = 3$