Question

Find f(-2) for the function fwd) = 3x - 2x +7

Answer 1

23

Explanation:

Maybe you want to evaluate ...

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

for x = -2.

Put the value of x where x is, then do the arithmetic.

f(-2) = 3(-2)^2 -2(-2) +7 = 3(4) +4 +7

f(-2) = 23