A bug was flying at a constant speed and the wind picked up as it was flying. This caused the bug to fly faster, but still at a constant speed. Which of the following graphs represents the distance the bug flew?

Question

Quizplus · Accepted Answer

The bug was flying at a constant speed, at first. This means that the bug's distance covered is increasing at a constant rate, as we can see between 1 and 3 on the x-axis. 
Then, the wind picked up, making the bug fly faster but still at a constant speed. This means the bug's distance was increasing at a constant rate, but this time faster. We see this happen between 3 and 5 on the x-axis.
This graph is correct because it has a slope that is constant and then becomes 'faster' or steeper half way through.

A Bug Was Flying at a Constant Speed and the Wind