Quadratic Graph of $y=(x-a)^2$ Completed Square Form Home > Quadratic Graphs > Quadratic Graph of $y=(x-a)^2$ Completed Square Form Graph of $y=x^2$ Graph of $y=(x-1)^2$ Shift $y=x^2$ to the right by 1 unit. Graph of $y=(x+1)^2$ Shift $y=x^2$ to the left by 1 unit. Graph of $y=-(x-1)^2$ Shift $y=x^2$ to the right by 1 unit and reflect by $x$-axis. Graph of $y=-(x+1)^2$ Shift $y=x^2$ to the left by 1 unit and reflect by $x$-axis.