SOLUTION: A parabola has x-intercepts of -5, and 3 and passes through the point (1,-12). Find its equation.

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Question 998233: A parabola has x-intercepts of -5, and 3 and passes through the point (1,-12). Find its equation.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
A parabola has x-intercepts of -5, and 3 and passes through the point (1,-12). Find its equation.
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y = a(x+5)(x-3)
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Since f(1) = -12,
a(1+5)(1-3) = -12
a(6)(-2) = -12
a = 1
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Ans:; y = x^2+2x-15
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Cheers,
Stan H.
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