zachcancer22 zachcancer22

16-06-2017
Mathematics

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Write the vertex form of the equation of the parabola which has a vertex of (0, 0) and contains the point (2, –2).

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ghanami ghanami

18-06-2017

hello:
an equation is : f(x) = a(x-0)² +0
the point (2 , -2)in parabola : -2= a(2-0)² +0
-2=4a
a =-1/2 is the coefficient of the squared expression in the parabola equation
the vertex form is m f(x) = -1/2x²

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