For each of the last six weeks, Nate recorded how many days he went for a run and how many miles he ran. His data are shown in the graph below. umber of Miles Run per Week Nate's Running Data y 986 65 +3 N
A nate's data form a function because he ran a different number of days in each of the six weeks.
B Nate's data do not form a function, because the number of miles he ran each week is not proportional to the number of days he ran each week.
C Nate's data form a function because he ran a different number of miles in each of the six weeks.
D Nate's data do not form a function, because the number of miles he ran each week did not increase as the number of days he ran each week increased.