From New York State Testing Program, Common Core Sample Problems, Grade 8:
Suppose that the amount of water consumed by a football team on a given day is a linear function of temperature, and that in 90o weather 220 the team consumes gallons and that in 76o weather it consumes 178 gallons.[51 words]
A. Express this relationship as a function.
B. State what the slope represents.
Here is the rationale for the original problem
Follow-up problem: Can the above rationale be satisfied with a problem that contains 40% less verbiage than the original?