Answer
See graph
Work Step by Step
$$y=-2x^2$$
The vertex is (0,0).
Substitute x-values to find their corresponding y-values.
$$y=-2(1)^2$$
$$y=-2$$
$$(1,-2)$$
$$y=-2(-1)^2$$
$$y=-2$$
$$(-1,-2)$$
Plot these points on a graph and connect with a smooth curve.
