Question

When x = 3, what is the correct function notation?

Responses


A ƒ(3) = −12
ƒ(3) = − 1 2


B ƒ(−12
) = 3ƒ(− 1 2 ) = 3


C ƒ(12
) = 3ƒ( 1 2 ) = 3


D ƒ(3) = 12

Answer 1

The correct function notation when x = 3 is

D. ƒ(3) = 12

This is because ƒ(3) represents the output of the function when the input is 3. The equation states that when the input is 3, the output is 12.

A, B and C are not correct because the input is not 3 in those equations.