What is the meaning of the point with an x-coordinate of 3.
A. The commuter train travels 3 feet in 180 seconds.
B. In 1 second, the commuter train travels 3 feet.
C. In 3 seconds, the commuter train travels 180 feet.
D. It takes the commuter train 60 seconds to go 3 feet
PLS HELP ASAP!!!