The directrix of a parabola is the liney = 5. The focus of the parabola is (2,1). What is the equation of the parabola?

The party planning committee has to determine the number of tables needed for an upcoming event. if a square table can fit 8 people and a round table can fit 6 people, the equation 150 = 8x + 6y represents the number of each type of table needed for 150 people.