2. Rental of a campsite is $15 plus $7 per day for stays of 1 to 7 days. For the function that finds the total cost from the number of days, the largest value in the domain is
and the largest number in the range is
The
domain values are in units of
and the range values are in units of

The first one, i believe, would be correct. all the others have one thing in common, and that's that they have repeating numbers. in the second one, x and y have repeating 6's and 3's, and in the third, x and y have repeating 6's as well. in the last one, there are repeating 3's. the first one has no repeating numbers.