Quadratic Graphs
Can you please check if my values are correct?
y=x^2-4x
x= -4 so y= 0
x= -3 so y= -3
x= -2 so y= -4
x= -1 so y= -3
x= 0 so y= 0
x= 1 so y= -3
x= 2 so y= 14
Thank you
only
x= 0 so y= 0
x= 1 so y= -3
is correct, the others are not
Perhaps, if you show how you are doing the calculations, I can see where you are going wrong.
I will do one for you ...
if x = -4
y = (-4)^2 - 4(-4)
= 16 + 16 = 32