Question

If ƒ (x) = 3x² – 2x - 1, what is the value of f(-2) ?
O-17
0-9
07
O15

Answer 1

15

Explanation:

To find the value of ƒ(-2), we need to substitute -2 for x in the given equation:

ƒ (x) = 3x² – 2x - 1

So ƒ(-2) = 3(-2)² – 2(-2) - 1

= 3(4) + 4 - 1

= 12 + 4 - 1

= 15

Therefore, ƒ(-2) = 15