SOLUTION: Find the equation of a parabola with focus (1,2),vertex (3,2)

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Question 440069: Find the equation of a parabola with focus (1,2),vertex (3,2)
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
Here, difference between focus and vertex = c = 1-3 = -2. The axis of symmetry is y = 2. Hence the equation is
+x+-+3+=+4%2A%28-2%29%28+y+-+2%29%5E2, or x+-+3+=+-8%28+y+-+2%29%5E2.