Question

Given the function ƒ(x) = 5x2 − 9x + 18, find ƒ(3).

Answer 1

f(3) = 36

Explanation:

ƒ(x) = 5x^2 − 9x + 18

Let x =3

ƒ(3) = 5(3)^2 − 9(3) + 18

= 5*9 -27 +18

= 45 -27+18

=36