Question

if f(x)=3x^2 - 2x + 4, find f(-1).
f(-1)= (simplify your answer.)

Explanation:

Step1: Differentiate the function

$f'(x)=6x - 2$

Step2: Substitute x = - 1

$f'(-1)=6\times(-1)-2=-6 - 2=-8$

Answer:

-8