Question

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

Answer 1

4

Explanation:

f(x) = 2x

When f(x) = 8, x = 8/2 = 4.

Hope this helped,

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Answer 2

4 = x

Explanation:

f(x) =2x

Let f(x) = 8

8 =2x

Divide each side by 2

8/2 = 2x/2

4 = x