Answer
$g(x)=-2x^2$ is a vertical stretch of $y=x^2$ followed by a reflection about the x-axis.
Work Step by Step
Red: $y=x^2$
Blue: $g(x)=-2x^2$
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.