SOLUTION: Find a possible formula for the quadratic function whose graph has vertex (10,2) and y intercept -9 y=?

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Question 940465: Find a possible formula for the quadratic function whose graph has vertex (10,2) and y intercept -9
y=?
Answer by josgarithmetic(39616) About Me  (Show Source):
You can put this solution on YOUR website!
Picking as standard form,y=a%28x-h%29%5E2%2Bk for simplicity.

h=10 and k=2.

a=%28y-k%29%2F%28x-h%29%5E2
a=%28-9-2%29%2F%280-10%29%5E2 using the given y-intercept
a=-11%2F100

highlight%28y=-%2811%2F100%29%28x-10%29%5E2%2B2%29