Question

Determine a quadratic function in vertex form given each set of characteristics.

* minimum value of -24 and x-intercepts at -21 and -5

I have:

(-21,0) and (-5,0)

How would I find the x-coordinate of the vertex?

(Thank you)

Mar 11, 2015

Because of symmetry, the vertex is midway between the roots: x = -13

Mar 11, 2015

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