Posted by **imurhero** on Saturday, June 18, 2011 at 11:11pm.

the points (-9,0) and (19,0) lie on parabola.

a.) determine an equation for its axis of symmetry: X=5

b.) the y-coordinate of the vertex is -28. determine an equation for the parabola in factored form.

c.)write your equation in part b) in standard form.

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