Regular graphing problem with an x-axis and a y-axis (x,y): if the number written for the y axis is negative then the point is below the x-axis, if positive, then the point is above the x-axis.
The coefficient in front of the term with x^2, or the 2 in this case, can be either negative or positive, if negative, the parabola will be facing down.Example: y = -(x+1)^2 +5 This would be graphed downwards, because the x^2 term is negative.
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