Question 619066
I'm not sure how you're getting those output values. When x = -2, y is...


y = x^2 - 4


y = (-2)^2 - 4


y = 4 - 4


y = 0


So when x = -2, y = 0. So we have the point (-2,0)


Hopefully that will get you on the right track. If not, please let me know.