I need help asap thank you.

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

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?

Which equation can be solved to find x the measure of jk in the apex