SOLUTION: Determine the equation of a parabola with vertex (-2,-11) and point (-4,5)show answer in vertex form.

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Question 974870: Determine the equation of a parabola with vertex (-2,-11) and point (-4,5)show answer in vertex form.
Found 3 solutions by josgarithmetic, lwsshak3, MathTherapy:
Answer by josgarithmetic(39617)   (Show Source): You can put this solution on YOUR website!
Standard Form Format, .

Knowing the vertex and a point for yours, solving for a will allow you to find its value. You already know that (h,k)=(-2,-11).








Answer by lwsshak3(11628)   (Show Source): You can put this solution on YOUR website!
Determine the equation of a parabola with vertex (-2,-11) and point (-4,5)show answer in vertex form.
vertex form of equation : y=mx+b, m=slope, b=y-intercept
slope ∆y/∆x=(5-(-11))/(-4-(-2))=16/-2=-8
equation: y=-8x+b
solve for b using coordinates of given point (-4,5) on the curve
b=y+8x=5+8*-4=-27
equation=y=-8x-27

Answer by MathTherapy(10552)   (Show Source): You can put this solution on YOUR website!

Determine the equation of a parabola with vertex (-2,-11) and point (-4,5)show answer in vertex form.
Vertex form of a parabola: , which becomes: 



5 = 4a – 11
4a = 5 + 11
4a = 16
a = , or 4
Equation in vertex form:
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