SOLUTION: Find the quadratic equation of the form y=ax^2+bx+c whose graph passes through the points (2,9) (-2, 13) (1, -2)

SOLUTION: Find the quadratic equation of the form y=ax^2+bx+c whose graph passes through the points (2,9) (-2, 13) (1, -2)

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Question 1007156:
Find the quadratic equation of the form y=ax^2+bx+c whose graph passes through the points (2,9) (-2, 13) (1, -2)
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Use the points to get three equation in a,b, and c.

1.

2.

3.
Subtract eq. 3 from eq. 1 and 2.

4.
and

5.
Adding eq. 4 and 5,

Then working backwards,
5.

and finally,
3.

.
.
.

.
.
.

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