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Find a formula for the quadratic function whose graph has vertex (−2,−1) and y-intercept \(6\).

 Jan 27, 2022
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Start with vertex form of a parabola

 

y = a (x+2)^2 -1        sub in point   0,6    to find a = 7/4

y = 7/4 (x+2)^2 -1

 Jan 27, 2022

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