Question 811155
Hello, I need your help! 
I got a system of these three equations. 
1. 0 =4a+2b+c
2. -2=9a+3b+c
3. -2= a- b+c 
I don't know how to change those to find out the equation y=ax^2+bx+c. 
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I used my TI-84 to get:
a = -2/3
b = 4/3
c = 0
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Cheers,
Stan H.
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