How to graph a parabola y=(1/8)x^2y=(18)x2?

1 Answer
May 15, 2015

Graph the parabola y=1/8x^2y=18x2 .

Determine points on the parabola. You must include positive and negative values for xx.

If x=-4; y=(1/8)(-4)^2=1/cancel8^1*cancel16^2=2; Point (-4, 2)

If x=-2; y=(1/8)(-2)^2=1/cancel8^2*cancel4^1=1/2; Point (-2, 1/2)

If x=0; y=1/8; Point (0,1/8)

If x=2; y=1/8(2)^2=1/cancel8^2*cancel4^1=1/2; Point (2,1/2)

If x=-4; y=1/8(-4)^2=1/cancel8^1*cancel16^2=2; Point (-4,2)

Plot the points and connect the points.

graph{y=1/8x^2 [-6.25, 6.244, -3.13, 3.12]}