Question

Which graph below would match the situation described?

A car travelling at 23 mi/h accelerates to 45 mi/h in 5 seconds. It maintains that speed for the next 5 seconds, and then slows to a stop during the next 5 seconds.

Answer 1

Best on the scenario, 
the graph that would match the situation would be : 
The bar that pass the point (23, 0)

hope this helps

Answer 2

In the graph A a car travelling at 45 mi/h slows to 23 mi/h in 5 seconds.
In the graph B a car accelerates from the start to reach 23 mi/h in 5 seconds.
Answer:
This situation is best showed in:
Graph C.