christianlocsin christianlocsin

06-09-2016
Mathematics

contestada

if the equation of a parabola is y = 7(x-4)^2+v and its vertex is (4,-2) , what is the value of v in the equation

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dalendrk dalendrk

06-09-2016

The vertex form of a quadratic function: y = a(x - h)² + k

vertex (h; k)

We have: y = 7(x - 4)² + v
vertex: (4; -2)

therefore: v = -2

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