<PRE><B>Question 1067526</B>
Determine whether a quadratic model exists for each set of values. If so write about the model.
Form: ax^2 + bx + c = y
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f(0)=5::: a*0^2 + b*0 + c = 5
f(-4)=13: a(16) - b(4) + c = 13
f(2)=7::: a(4) + b(2) + c = 7
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Since c = 5
16a - 4b  = 8
4a + 2b = 2
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4a - b = 2
4a + 2b = 2
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3b = 0
b = 0
So, a = 1/2
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Ans: y = (1/2)x^2 + 5
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Cheers,
Stan H.
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