Question

Kimberly works at the Park City Ice Rink's snack stand. At the beginning of her shift today, she made 300 cups of popcorn. Each serving Kimberly sells during her shift contains 3 cups of popcorn. The function C(p) represents how many cups of popcorn remain in the machine after Kimberly sells p servings.
What is the domain of C(p)?

Answer 1

C(p) = 300 − 3p. Since p is the number of servings sold, p must be a whole number between 0 and 100 (300/3 = 100).

Domain: {0, 1, 2, …, 100}.