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01-06-2017
Mathematics

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The vertex of this parabola is at (2,-1).when the y value is 0,the x value is 5.what is the coefficient of the squared term in the parabolas equation

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gerishonwambugu gerishonwambugu

01-06-2017

Vertex form:
y = a(x-2)^2 -1
solve for a:
0 = a(5-2)^2 -1
1 = a(3)^2
1 = 9a
a = 1/9

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