A pumpkin was launched from a catapult on top of a 30-foot platform. The graph shows the height in feet of the pumpkin above the ground as a quadratic function of x, the horizontal distance in feet of the pumpkin from the platform.

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.