Answer
See graph
Work Step by Step
$$y=-4x^2$$
The vertex is (0,0).
Substitute x-values to find their corresponding y-values.
$$y=-4(1)^2$$
$$y=-4$$
$$(1,-4)$$
$$y=-4(-1)^2$$
$$y=-4$$
$$(-1,-4)$$
Plot these points on a graph and connect with a smooth curve.
