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The graph shows the function f(x)=3^x What is the value of x when f(x)=9? A:3 B:1 C:0 D:2
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The graph shows the function f(x)=3^x

What is the value of x when f(x)=9?
A:3
B:1
C:0
D:2

User Bdoubleu
by
7.1k points

1 Answer

4 votes
The answer is D.
You have to make the whole numbers equal to then solve for the exponents:
F(x) means y, therefore, y is 9.
9 = 3^x.
3^2 is the same as 9.
Then, 3^2 = 3^x.
Then solve for the exponents,
2 = x
Therefore your answer is 2.
User Darren Bishop
by
8.6k points
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