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If f(x) = 2x + 7, which of the following shows the correct way to find f(5)? A. (2 + 7)/5 B. 25 +7 C. 2(5) + 7 D. 2(5 + 7)

User Phil Loden
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1 Answer

14 votes
14 votes

Substitute 5 for x in the function f(x) = 2x + 7.


\begin{gathered} f(5)=2\cdot5+7 \\ =2(5)+7 \end{gathered}

Option C is correct.

User Babbata
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