The equation y = 13x describes the amount of money Sarah earns, where x is the number of hours she works and y is the amount of money she earns. The table shows the amount of money Austin earns for different numbers of hours worked. Austin’s Earnings Time (h) 3 5 8 10 Money ($) earned 42 70 112 140 (a) How much money does Austin earn per hour? Show your work. (b) Who earns more per hour? Justify your answer. (c) Draw a graph that represents Austin’s earnings over time in hours. Remember to label the axes.
