选择题

2001 AMC 8 Problem 19: Speed-Time Graph for Car N

Car M traveled at a constant speed for a given time. This is shown by the dashed line. Car N traveled at twice the speed for the same distance. If Car M and Car N's speed and time are shown as solid line, which graph illustrates this?

A.
Graph A
B.
Graph B
C.
Graph C
D.
Graph D
E.
Graph E