Question

F(x)=x2–5x+7, find f(3)

Answer 1

f(3) = 1

Explanation:

f(x) = x^2 – 5x + 7

f(3) = 3^2 - 5(3) + 7

f(3) = 9 - 15 + 7

f(3) = -6 + 7

f(3) = 1

Answer 2

1

Explanation:

Hello!

To find f(3) we put 3 in for x

`3^(2) -5(3)+7`

Follow PEMDAS

9 - 5(3) + 7

9 - 15 + 7

-6 + 7 = 1

The answer is 1

Hope this helps!