Question

If ƒ (x ) = 3x2 - x, find ƒ (-2).

Answer 1

To find ƒ(-2), substitute -2 for x in the given function ƒ(x). The value of ƒ(-2) is 14.

Step-by-step explanation:

To find ƒ(-2), we substitute -2 for x in the function ƒ(x) = 3x² - x.

So, ƒ(-2) = 3(-2)² - (-2).

ƒ(-2) = 12 - (-2).

ƒ(-2) = 12 + 2.

ƒ(-2) = 14.

Therefore, ƒ(-2) = 14.