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Find the equation whose graph is a parabola with vertex (2,4), vertical axis of symmetry, and contains the point (1,-1). Express your answer in the form "ax^2+bx+c".

 Feb 10, 2022
 #1
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Verte4x form of parabola

 

y = a (x-2)^2 + 4    sub in the given point (1,-1) to find

    a = -5

 

 

y = -5 (x-2)2 + 4     <========expand to get requested form  .....

 Feb 11, 2022

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