Question

What is f(–3) for the function f(a) = –2a2 – 5a + 4?

______

Answer 1

well then it would be -2 times -3 times 2 - 5 times -3 plus 4

Answer 2

f(-3) = 1

Explanation:

The given function is
`f(a) = -2a^2 -5a + 4`

We need to find f(-3)

This is called evaluating function.

To find f(-3) replace a by -3 in the given function

`f(3) = -2(-3)^2 - 5(-3) + 4`

= -2(9) +15 + 4

= -18 + 15 + 4

= -3 + 4

f(-3) = 1

Therefore, the answer is 1.