SOLUTION: Write an equation for the parabola whose vertex is at (2,6) and which passes through (4,-4)

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Question 756040: Write an equation for the parabola whose vertex is at (2,6) and which passes through (4,-4)
Answer by tommyt3rd(5050) About Me  (Show Source):
You can put this solution on YOUR website!
h=2
k=6
x=4
y=-4
%0D%0Ay=a%2A%28x-h%29%5E2%2Bk%0D%0A
becomes
%0D%0A-4=a%2A%284-2%29%5E2%2B6%0D%0A
so a=-5/2



so we get
%0D%0Ay=%28-5%2F2%29%2A%28x-2%29%5E2%2B6%0D%0A