Question

Find f(–2) for the function f(x) = 3x2 – 2x 7. −13 −1 1 23

Answer 1

16

Explanation:

f ( x ) = 3x² - 2x

To find : f ( - 2 )

f ( - 2 ) = f ( x )

Here,

x = - 2

f ( - 2 ) = 3 ( - 2 )² - 2 ( - 2 )

= 3 ( 4 ) - 2*( - 2 )

= 3*4 + 4

= 12 + 4

f ( - 2 ) = 16