Find the average acceleration of a northbound subway train that slows from 12 m/s to 9.6 m/s in 0.9 s
question 3 options:

-2.7 m/s2

-2.7 m/s

2.7 m/s2

2.7 m/s

2.7 m/s2 average acceleration of a northbound subway train

Alinear relationship would look like a straight line on the graph. it could have a positive negative or 0 slope. so it could be a line potentially going in any direction but it must be perfectly straight.