Question

a car increases, then decreases, its speed. which table could represent the speed of the car? time (min) 5 6 7 8 9 speed (mph) 45 43 41 42 43 time (min) 5 6 7 8 9 speed (mph) 45 47 49 48 47 time (min) 5 6 7 8 9 speed (mph) 45 45 45 43 41 time (min) 5 6 7 8 9 speed (mph) 45 43 41 41 41

Explanation:

Step1: Analyze first table

Speed decreases from 45 to 43 to 41, then a small increase, but overall mostly decreasing trend.

Step2: Analyze second table

Speed increases from 45 to 47 to 49, then decreases to 48 and 47, showing increase - then decrease pattern.

Step3: Analyze third table

Speed is constant at 45 for first 3 time - points then decreases.

Step4: Analyze fourth table

Speed decreases continuously from 45 to 43 to 41 and remains 41.

Answer:

The second table could represent the speed of the car as it first increases (from 45 mph at 5 minutes to 49 mph at 7 minutes) and then decreases (from 49 mph at 7 minutes to 47 mph at 9 minutes).