The graph increases in part 1.
The graph decreases in parts 3 and 5.
The graph is constant in parts 2 and 4.
How to Interpret Distance Time Graphs?
Part A:
In part 1 we can see that it moves, as its distance increases, and that there is a slight curve for the graph.
In part 2 we have a horizontal line, meaning that the position does not change with time, so the bus is at stop.
In part 3 we have a change in position such that the distance decreases, meaning that the bus is returning to the school.
In part 4 we have another horizontal line, meaning that the bus is at a stop again.
In part 5 we have a final decreasing line that goes to the zero, which means that the bus finally came back to the school.
B) The graph increases in part 1.
The graph decreases in parts 3 and 5.
The graph is constant in parts 2 and 4.
C) The graph behaves differently in different parts of the domain and so we can say that it is not linear.
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