A race car driver practices over four sessions. His finish times for specified distances are given. He wants to compare how fast he was driving in each session.

Place the finish times of each session in order from fastest to slowest according to the unit rate in kilometers per second.

8 kilometers
in 83 seconds
10 kilometers
in 97 seconds

18 kilometers
in 198 seconds
15 kilometers
in 168 seconds
, , ,

10 km in 97 seconds, 8 km in 83 seconds, 18 km in 198 seconds, 15 km in 168 seconds.

Step-by-step explanation:

The unit rate for each session can be found by dividing the kilometers by the seconds. Then, make an equivalent fraction by dividing both the numerator and denominator by the numerator. This will show how many seconds it took to finish 1 kilometer during that session.

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step-by-step explanation:

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- both graphs increase on their domain.

- the graphs of both functions have the same x-intercept.

- neither graph has a y-intercept.