Plz give me the right answer

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

The parabola x= √y-9 opens: a.)up b.)down c.)right d.)left

In the diagram, points d and e are marked by drawing arcs of equal size centered at b such that the arcs intersect ba and bc. then, intersecting arcs of equal size are drawn centered at points d and e. point p is located at the intersection of these arcs. based on this construction, m , and m