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OpenStudy (anonymous):
Find the equation of the parabola passing through (-2,40),(1,7),(3,15)
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OpenStudy (dumbcow):
y = a(x-h)^2 +k plug in 3 points to get 3 equations to solve for a,h,k
OpenStudy (dumbcow):
you could also do a quadratic regression if you have a graphing calculator
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