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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

1 answer

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
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