Question

The new season of Tessa's favorite mystery series is coming soon on a streaming service. The season is 24 episodes, but it will be broken up into 6-episode releases. The function E(r) represents the number of episodes still to come after r releases.
What is the domain of E(r)?

Answer 1

Each release has 6 episodes, so E(r) = 24 − 6r. Since r must be a whole number of releases and E(r) ≥ 0, r = 0,1,2,3,4.

Domain: {0, 1, 2, 3, 4}.