SOLUTION: Write a quadratic function in vertex form that has the given vertex and passes through the given point. Vertex (-2, -2) Point (1, -20)

Question 117604: Write a quadratic function in vertex form that has the given vertex and passes through the given point. Vertex (-2, -2) Point (1, -20)
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
The vertex form of a parabola's equation is generally expressed as :
where (h,k) is the vertex.

You are given the vertex (-2-2), so the equation becomes:

Since the parabola contains the point (1, -20), substitute these values for x and y, and then solve the equation for a:

Now replace a with the value determined,

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