The graph below shows Kate's distance from her home (y), in miles, after a certain amount of time (x), in minutes:




Four students described Kate's motion, as shown in the table below:


Student

Description

Mary

She drives at a variable speed for 2 minutes, then drives at a constant speed for 6 minutes, and finally stops at the parking area for the next 8 minutes.

Lucy

She drives at a variable speed for 2 minutes, then drives at a constant speed for 6 minutes, and finally stops at the parking area for the next 2 minutes.

Tim

She drives at a variable speed for 2 minutes, then drives at a constant speed for 4 minutes, and finally stops at the parking area for the next 2 minutes.

Pamela

She drives at a variable speed for 2 minutes, then drives at a constant speed for 4 minutes, and finally stops at the parking area for the next 8 minutes.



Which student most accurately described Lisa's motion?


Mary

Lucy

Tim

Pamela