4. If g(x) = - 4x² - 3x + 2, determine g(-2).

Question

asked Sep 19, 2020 92.8k views

1 Answer

Fladdimir · Answer 1 · 2020-09-26T11:34:42+0000

For this case we have a function of the form:

y = f (x)

Where:

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

We must find the value of the function when
x = -2 , that is,
g (-2) . So:

g (-2) = - 4 (-2) ^ 2-3 (-2) +2

We have to:

$- * - = +\\- * + = -$

So:

$g (-2) = - 4 (4) + 6 + 2\\g (-2) = - 16 + 8$

Different signs are subtracted and the major sign is placed.

g (-2) = - 8

Answer: