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the vrtex os this parabola is at (-2,-3) when the y value is -2 the x value is -5 what is the coefficient of the squared term in the parabolas equation?

 Mar 9, 2022
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Vertex form of parabola

 

y = a (x- -2)^2 -3

  =  a ( x+2)^2 -3           sub in the point given to calculate 'a'

-2 = a (-5+2)^2 - 3

  a = 1/9

 

y = 1/9 (x+2)^2 -3     <======== expand this to find your answer   ( well....you really should be able to see the answer without expanding)

 Mar 9, 2022

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