The quantity z varies directly with w and inversely with x and y When w = 10, x = -6, and
y = -10, z = 2. Find z when w = -8, x = 4, and y = -12.

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