Question

F(x)=x^2+5x-9. Find f(3)

Answer 1

Explanation:

f(3) = (3)^2 + 5(3) - 9 = 9 + 15 - 9 = 24 - 9 = 15

Answer 2

Steps to solve:

f(x) = x^2 + 5x - 9

~Substitute

f(3) = 3^2 + 5(3) - 9

~Simplify

f(3) = 9 + 15 - 9

~Add

f(3) = 24 - 9

~Subtract

f(3) = 15

Best of Luck!