Question

in a quadratic function of y=ax² how would i graph y=-3x²

Answer 1

a sharper downward "u"

Answer 2

first notice its negative, so the parabola opens down
next notice there are no shifts up/down, left/right so the vertex is on the origin (0,0)
then plot some points
x=1 or x=-1, y = -3
x = 2 or x = -2, y = -12

Answer 3

exactly like this: http://www.wolframalpha.com/input/?i=+y%3D-3x%C2%B2+

Answer 4

how would i make it into a table ( y=-3x² )

Answer 5

like
x y
0 0
1 -3
2 -12
3 -27