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December 19, 2014

December 19, 2014

Posted by **Peter** on Tuesday, September 4, 2012 at 1:37am.

Vertex: (-2, 5)

Point: (0, 9)

- Math -
**MathMate**, Tuesday, September 4, 2012 at 8:32amStandard quadratic function with given vertex (h,k) is given by:

y=a(x-h)²+k

where a can be found by substituting the values of any given point on the curve.

Here, h=-2, k=5, so

y=a(x+2)²+5

Now substitute x=0, y=9 and solve for a.

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