Can someone help me I can’t get it right.

Answer
the numbers in the x column equal x. So you have to put them numbers in replacement of x. For example, the x=1 would be 1²-(4 ×1) so it would be -3. Sorry if this doesnt make sense but thats how I would do it!
Step-by-step explanation:
Answer:
-1,5 0,0 1,-3 2,-4 3,-3 4,0
Step-by-step explanation:
Formula
y= ()^2-4()
plug in the x to the parenthesis in order to get y