SOLUTION: write an equation for the parabola with vertex (-2,3) and the y-intercept -1

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Question 886504: write an equation for the parabola with vertex (-2,3) and the y-intercept -1
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
write an equation for the parabola with vertex (-2,3) and the y-intercept -1
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Form: y = mx+b
Using (-2,3) you get: 3 = -2m+b
Using (0,-1) you get b = -1
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Solve for "m":
3 = -2m-1
2m = -4
m = -2
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Equation:
y = -2x -1
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Cheers,
Stan H.