Question

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

Answer 1

f(a) = –2a2 – 5a + 4

f(–3)

Replace a with -3:

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

-2(9) +15 +4 =

-18 + 19 = 1