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The standard form or the equation of a parabola is y = 7x^2 + 14 +4. What is the vertex form of the equation?

 Mar 7, 2020
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Vertex form    y = a (x-h)^2 + k

 

y = 7x^2 + 14x + 4  =   7 (x^2 + 2x)    + 4     'complete the square'

                                =  7 (x+1)^2       -7 + 4

                                = 7 (x+1)^2    -3

 Mar 7, 2020

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