Question

A function is created to represent the amount of money spent on lunch if you spent 5 dollars a day. What restrictions would be made to the range? A. The range would only include integers.. .B. The range would only include negative integers.. . C. The range would only include positive integers.. .D. The range would include all real numbers.

Answer 1

         At the beginning you have spent $0. After one day you would have spent $5. After 2 days you would have spent $10,  etc.
         f ( x ) = 5 x, where x is the number of days
        The numbers that represent the amount spent are:  0,  5,  10,  15,  20,...
         Answer:
         C ) The range would only include positive integers.