Question

Evaluate the quadratic function, f(x) = 3x2
– 4x – 9 at x = -2

Answer 1

Answer:

11

Step-by-step explanation:

f(x) = 3x^2 – 4x – 9

Let x = -2

f(-2) = 3 (-2)^2 -4(-2) -9

      =3(4) +8 -9

      =12 +8 -9

      20-9

       11