Questions: If f(x)=3x-12, what is f(2)? A. -18 B. 18 C. 6 D. -6

Transcript text: If $f(x)=3 x-12$, what is $f(2) ?$ A. -18 B. 18 C. 6 D. -6

Solution

Step 1: Substitute the value into the function

Substitute $ x = 2 $ into the function $ f(x) = 3x - 12 $: \[ f(2) = 3(2) - 12 \]

Step 2: Perform the multiplication

Multiply $ 3 $ by $ 2 $: \[ f(2) = 6 - 12 \]

Step 3: Perform the subtraction

Subtract $ 12 $ from $ 6 $: \[ f(2) = -6 \]

$\boxed{-6}$

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