A car traveling at 46 mi/h slows to a speed of 23 mi/h in 5 seconds. It maintains that speed for 5 seconds and then slows to a stop after 5 more seconds. Which graph shows the car’s speed over time?
For this case, the first thing you have to keep in mind is that we are in the presence of a piece function. We have then: For [0, 5]: A car traveling at 46 mi / h slows to a speed of 23 mi / h in 5 seconds. For [5, 10]: It maintains that speed for 5 seconds. For [10, 15]: then slows to a stop after 5 more seconds. In this case: x axis: represents time y axis: represents the speed. Answer: See attached image for the graphic v (t) vs t.
