Question

The graph shows the function f(x)=3^x what is the value of x when f(x)=9

Answer 1

2

Explanation:

A P E

Answer 2

2

Explanation:

Substituting 9 in for f(x),

9 = 3ˣ

The power of 3 that equals 9 is the second power; this means x = 2.