Answer
-2
Work Step by Step
We find the value of x for the vertex, given as $\frac{-b}{2a}$. In order to do this, we plug the provided values for a and b into the equation.
$-b/2a = 48/(-12)2 = -2 $
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.