Marcel is performing the first test on his company’s new electric car. During the test, the electric car reaches a maximum speed
of 81 mph. The performance test results of the electric car can be modeled by the following table, where x represents time, in seconds at the start of the test, and y represents the speed, in miles per hour.
For this case we have the following variables: x: represents time, in seconds at the start of the test. y: represents the speed, in miles per hour. We have then that: x = 0 ---> y = 0 x = 12 ---> y = 0 Answer: the electric car is not moving at 0 seconds and 12 seconds