Question

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

Answer 1

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:

$g (-2) = - 8$