Answer
The graph rises (is increasing) from left to right therefore as the number of hours increases (as x increases) the cost also increases (y also increases).
Work Step by Step
(Refer to the graph in the attached image below for the graph of C(x).)
Based on the graph, it can be observed that as the number of hours the machinery is rented increases, the cost also increases.
This is because as you move to right of the graph (increasing number of hours the machinery is rented), the graph rises (which means that the cost also increases).
