You plug the values for 'x' into 'y= (1/2)x^2' to get the values for 'y'.

For x = -1,

y = (1/2)(-1)^2

y = 1/2

One point is (-1, 1/2)

For x = 0

y = (1/2)0^2

y = 0

Second point is (0, 0)

For x = 1

y = (1/2)1^2

y = 1/2

This point is (1, 1/2).

And so on.