Question

what does the notation f(2) mean?
multiply f by 2

the output (y - value) when x = 2

the value of x when the output is 2

done

Explanation:

In function notation, \( f(x) \) represents the output (or \( y \)-value) of the function \( f \) when the input is \( x \). So \( f(2) \) means we substitute \( x = 2 \) into the function \( f \) and find the corresponding output ( \( y \)-value). The first option is incorrect because \( f(2) \) is not multiplying \( f \) by 2. The third option is incorrect because it describes finding the input \( x \) when the output is 2, which would be solving \( f(x)=2 \) for \( x \), not what \( f(2) \) means.

Answer:

the output (y - value) when \( x = 2 \)