A contractor must haul a large amount of dirt to a work site. She collected information from two hauling companies. EZ Excavation gives its prices in a table. Happy Hauling Service gives its prices in a graph.
dirt
55
(cubic
yards)
50
cost
(dollars)
45
40
8
196
351
cost (dollars)
30
20
490
25
20
26
637
15
10
5
dirt (cubic yards)
a. How much would each hauling company charge in order to haul 40 cubic yards of dirt?