Question

The graph below shows the distance (y) between Hannah and her home, in km, after a certain time (x), in hours:

Which of the following statements best describes Hannah"s distance from her home?

Answer 1

C

It is decreasing in the interval 2 < x < 3 hours

Explanation:

i took the test

Answer 2

Alright, from the graph, we know that Hannah's distance between hour 2 and hour 4 isn't uniform, so what we need to do is break the graph down a little.

When we break it down, we learn that Hannah's distance between hour 2 and hour 3 is decreasing because the y value decreases, and that Hannah's distance between hour 3 and hour 4 is increasing, because the y value starts increasing again.

Once we know that, all that's left is to match it up with the choices given. We can eliminate choices A and D because Hannah's distance between hour 2 and hour 4 isn't uniform, leaving us with B and C.

Between hours 2 and 3, we know that Hannah's distance is decreasing because the y value decreases, giving you your answer, which is C!