Question

marcel is performing the first test on his companys 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 graph, where x represents time, in seconds at the start of the test, and y represents the speed, in miles per hour. which of the following statements is true about this situation? a. the electric car is not moving at 4 seconds and 8 seconds. b. the electric car is not moving at 0 seconds and 12 seconds. c. the electric car is not moving at 6 seconds and 12 seconds.

Explanation:

Step1: Analyze the graph

The \(x -\)axis represents time (\(x\)) in seconds and the \(y -\)axis represents speed (\(y\)) in miles per hour. When the car is not moving, \(y = 0\).

Step2: Find the \(x -\)values where \(y=0\)

Looking at the graph, when \(y = 0\), \(x=0\) (at the start of the test) and \(x = 12\) (at the end of the relevant part of the test shown in the graph).

Answer:

B. The electric car is not moving at 0 seconds and 12 seconds.