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`