The solid line is \(y=x^2\) and the dashed line is \(y=\dfrac{x^2}{2}\).
The graph of \(\dfrac{y}{\left(\frac{1}{2}\right)}=x^2\) [that is, \(y=\dfrac{x^2}{2}\)] is half the height of the graph of \(y=x^2\).
