Hi,

parabola that has vertex (1,2) and y-intercept (0,5)

Sketch IT

the vertex form of a Parabola opening up(a>0) or down(a<0),  

where(h,k) is the vertex  and  x = h  is the Line of Symmetry

  , 

Using P(0,5)

5 = a(-1)^2 + 2 , 3 = a

 



 

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