Question

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.

Answer 1

A) $14/hr B) Austin

Explanation:

A)

If he earns $140 in 10 hours you can divide 140 by 10 to find out how much he makes per hour

B)

Sarah makes $13/hr which is $1 less than Austin