How would I complete example 3 and 4?

PCD PARABOLA WITH HORIZONTAL AXIS Horizontal The graph of the equation y/2 = 4px is a parabola with the following properties. VERTEX V(0, 0) FOCUS F(p, 0) yz = 4 px DIRECTRIX * = -P X=-P The parabola opens to the right if p > 0 or to the left if p 0 y2 = 4px with p