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

Yedpodtrzitko asked Apr 9, 2023

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Yedpodtrzitko asked Apr 9, 2023

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14 votes

Answer:

$\{3\}$

Explanation:

Strictly speaking, we need to know the point of
f(x) = 3x intersecting
f(x) = 9 . In other words, we need to solve the equality:

$3x = 9; \\ x = (9)/(3); \\ x = 3$

Here it is.

Mircea Voivod answered Apr 16, 2023

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