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April 19, 2015

April 19, 2015

Posted by **bowershe** on Wednesday, December 11, 2013 at 4:11pm.

x –2 0 4

ƒ(x) 1 5 -59

- algebra -
**Sam**, Wednesday, December 11, 2013 at 5:16pmax^2 + bx + c = 1

plug in first value

4a -2b + c = 1

do the same for the others:

0 + 0 + c = 5

c = 5

16a + 4b + c = -59

so we plug in c into the equations with and b:

16a + 4b + 5 = -59

4a -2b + 5 = 1

4a = 2b -4

2a = b - 2

16a + 4b = -64

8(b-2) + 4b = -64

2(b-2) + b = -16

2b - 4 + b = -16

3b = -12

b = -4

Plug in for a

2a = -4 - 2

2a = -6

a = -3

So the equation is:

-3x^2 - 4x + 5

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