2 years ago

The graph shows the function f(x) = 2* What is the value of xwhen f(x) = 8?

Mathematics

2 answers:

White raven [17]2 years ago

7 0

Answer:

A. 3

Step-by-step explanation:

y = 2^x

y = 8

Plug y as 8 in the first equation.

8 = 2^x

Make the left side of the equation with a base of 2.

2^3 = 2^x

Cancel bases.

3 = x

soldi70 [24.7K]2 years ago

3 0

Answer:

x=3

Step-by-step explanation:

f(x) = 2^x

Let f(x) =8

8 = 2^x

Rewriting 8 as 2^3

2^3 = 2^x

The bases are the same so the exponents are the same

3=x

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