SOLUTION: Focus on the y-axis and passes through (4,3)

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Question 1021446: Focus on the y-axis and passes through (4,3)
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
Equation not unique. Vertex will be unknown point (x,0).

Begin with y=a%28x-h%29%5E2%2B0 same as y=a%28x-h%29%5E2.

Your one given point allows a possible equation in the unknown variables a and h, but not enough information to find their values, so you finish either with y=a%28x-h%29%5E2 or system%283=a%284-h%29%5E2%2C0=a%28x-h%29%5E2%29.