IXL problem please help

Acable car begins its trip by moving up a hill. as it moves up, it gains elevation at a constant rate of 50 feet/minute until it reaches the peak at 2,000 feet. then, as the car moves down to the hill’s base, its elevation drops at the same rate.

Need this asap if anyone can i would be very grateful. if you could show workings that would really

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1