The correct answer is B: Lucy
Lucy accurately described Kate's motion as driving at a variable speed for 2 minutes, then driving at a constant speed for 6 minutes, and finally stopping at the parking area for the next 2 minutes, which matches the graph provided.
The graph below shows Kate's distance from her home (y), in miles, after a certain amount of time (x), in minutes:
Graph titled Kates Distance Vs Time shows 0 to 10 on x and y axes at increments of 1.The label on x axis is time in minutes and that on y axis is Distance from Home in miles. Lines are joined at the ordered pairs 0, 0 and 1, 0.5 and 1.5, 1 and 2, 2 and 3, 3 and 4, 4 and 5, 5 and 6, 6 and 7, 6 and 8, 6.
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? (5 points)
A: Mary
B: Lucy
C: Tim
D: Pamela
1 answer