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Graphs
The amount of money Sheryl makes is modeled in the graph shown.
A.
There are two points located on the graph.
The first point is at (0, 0) and represents the condition where Sheryl has not worked (0 hours) and has not earned a dollar ($0). This means she only gets paid per hour worked.
The other point at (1, 13) (approximately) represents the fact that Sheryl earned $13 for an hour worked.
B.
The graph does not show Shery's earnings for 9 hours, but we can use the result in part A to find that out.
If she makes $13 in an hour worked, then she should earn $13 * 9 = $117 for 9 hours of work.