SOLUTION: WRITE AN EQUATION FOR THE QUADRATIC FUNCTION WHOSE GRAPH CONTAINS THE GIVEN VERTEX AND POINT VERTEX(-2,-5) POINT (-3,-7) PLEASE HELP , IM SO LOST !

Algebra ->  Systems-of-equations -> SOLUTION: WRITE AN EQUATION FOR THE QUADRATIC FUNCTION WHOSE GRAPH CONTAINS THE GIVEN VERTEX AND POINT VERTEX(-2,-5) POINT (-3,-7) PLEASE HELP , IM SO LOST !       Log On


   

Question 364024: WRITE AN EQUATION FOR THE QUADRATIC FUNCTION WHOSE GRAPH CONTAINS THE GIVEN VERTEX AND POINT
VERTEX(-2,-5) POINT (-3,-7)

PLEASE HELP , IM SO LOST !
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Use the vertex form, y=a%28x-h%29%5E2%2Bk
y=a%28x%2B2%29%5E2-5
Now use the point to solve for a.
-7=a%28-3%2B2%29%5E2-5
-2=a%28-1%29%5E2
a=-2
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highlight%28y=-2%28x%2B2%29%5E2-5%29
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