Answer
Plot the points $(-3,-3),(-1,13),(0,15),(1,13),(3,-3)$ and join them with a smooth curve
Work Step by Step
We are given the equation:
$y=-2x^2+15$
Determine 5 points belonging to the graph:
$x=-3\Rightarrow y=-2(-3)^2+15=-3$
$x=-1\Rightarrow y=-2(-1)^2+15=13$
$x=0\Rightarrow y=-2(0^2)+15=15$
$x=1\Rightarrow y=-2(1^2)+15=13$
$x=3\Rightarrow y=-2(3^2)+15=-3$
Plot the points $(-3,-3),(-1,13),(0,15),(1,13),(3,-3)$ and join them with a smooth curve to graph the function:
