Circle describes and correct each error Sketch the graph of the equationY=x^2+2x-1
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y = x^2 + 2x -1
The vertex is at x = -1 and y = -2 so that is at the correct location
Check
Next check the the y intercept
Let x = 0
y = -1
The graph does not cross the y axis at -1 when x = 0
The graph drawn is too narrow