Question 1075214
ax^2+bx+c=y
x=0, y=-4 so c=-4
x=1 y=a+b-4=0
a+b=4
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x=-2
4a+2b-4=-2
4a+2b=2
a=4-b
16-4b+2b=2
-2b=-14
b=7
a=-3
-3x^2+7x-4=y
{{{graph(300,300,-10,10,-10,10,-3x^2+7x-4)}}}