Question

How do you graph `y = -1/2x^2`?

Answer 1

`y=-(x^2/2)`
graph{-(x^2/2) [-10, 10, -5, 5]}

Explanation:

`y=-(x^2/2)`
`x=0,y=0`
`x=1,y=-(1/2)`
`x=-1,y=-(1/2)`
`x=2,y=-2`
`x=-2,y=-2`
Now we can plot in the graph with values of these five points.