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- Thread starter Azurin
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- Thread starter
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- Mar 1, 2012

- 716

you are given $h = -1$

write two equations using the two given (x,y) coordinates and solve the system for $a$ and $k$

- Aug 30, 2012

- 1,132

Actually, there are two solutions... one with a = A and one with a = -A. This corresponds to one parabola opening upward and another opening downward.The equation of the axis of symmetry of the graph of a quadratic function is x=-1. The graph passes through the points (0,3) and (-3, 9). Determinetheequation of the function.

-Dan