Acircle has an equation x2 + y2 + 2x ‒ 2y ‒ 38 = 0. what ordered pair represents the center of the circle? a. (2, ‒2) b. (2, ‒38) c. (‒1, 1) d. (1, ‒1)

Solve the problem by making up an equation. a man could arrive on time for an appointment if he drove the car at 40 mph; however, since he left the house 15 minutes late, he drove the car at 50 mph and arrive 3 minutes early for the appointment. how far from his house was his appointment?