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15. if $f(x) = 3x - 2$, what is $f(4)$? \\bigcirc 12 \\bigcirc 16 \\big…

Question

  1. if $f(x) = 3x - 2$, what is $f(4)$?

\bigcirc 12
\bigcirc 16
\bigcirc 14
\bigcirc 10

Explanation:

Step1: Substitute $x=4$ into $f(x)$

$f(4) = 3(4) - 2$

Step2: Calculate multiplication first

$3(4) = 12$

Step3: Perform subtraction

$12 - 2 = 10$

Answer:

10