Question 201683
Rough  sketch  shows  a  potential  y  parabola  pointed  up
.
standard  form, (y-k) = A (x-h)^2
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subst  vertex ( -1,3)
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(y-3) = A (x+1)^2
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subst (4,53)
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(53-3) =A(4+1)^2
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50 = A * 25
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A=2
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EQN ,,,, (y-3) = 2(x+1)^2
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This  matches  answer  (B)
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