The graph of is not the one shown on the picture. Although the highlighted are (above the curve) is correct, since that corresponds to the y-values larger than those of the parabola, the problem is that in the picture given, the actual trace of the parabola (which corresponds to the equality, is shown with dotted trace - which by convention indicates that the trace is NOT included.
Since the inequality symbol in our inequality DOES contain the equal sign (larger than OR EQUAL to), the parabola's trace should be represented with a solid line. (see attached image)
