Hi,

y=x^2+2x+4   Note:  (0,4)is where Parabola crosses the y axis

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

   V(-1,3) Yes!  Important 1st Step

For graphing:

2nd step: Which direction does the Parabola Open? 

 y = a(x-h)^2 + k   is the general form of a parabola opening Up or Down, a = 1 > 0, parabola opens Up

3rd Step:  what is the Line of symmetry:  x = -1

Plotting Vertex and y-intercept and putting in the line of symmetry,

 allows us to determine the graph



 

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