Question

you brake your car from a speed of 55 mph. the table shows data that represent your car’s speed versus the amount of time elapsed from the moment that you began to brake.
elapsed time (sec) | speed (mph)
1 | 45
2 | 35
3 | 25
4 | 15
5 | 15
6 | 15
evaluate the following graph based on the data in the table.

Explanation:

Step1: Analyze table data

From the table, speed decreases by 10 mph each second from 1 - 4 seconds (55→45→35→25→15), then stays at 15 mph from 4 - 6 seconds.

Step2: Analyze the graph

The graph shows a continuous linear decrease (slope -10, from ~45 at 1 sec, ~35 at 2 sec, etc.), but it does not include the flat portion (speed = 15 mph) from 4 - 6 seconds. So the graph is incomplete/incorrect for the given data.

Answer:

The graph does not accurately represent the data.