Answer
The graph (b) best illustrates the provided story.
Work Step by Step
Let us consider the provided statement:
According to the given statement, firstly the bike rides down the hill and we know that when anything rides down the hill, its speed gradually increases. Now, in both the graph (b) and (c), the speed of the bike increases, but in graph (c) the speed is increasing exponentially while in graph (b) the speed is gradually increasing.
Then, the bike rides up another hill, and when anything rides up the hill, its speed gradually decreases.
And finally, after riding the bike on a level surface, the bike stops and thus the graph finally touches the x-axis.
Therefore, the graph (b) best illustrates the story.
