1. Miguel is taking a quiz that contains 5 questions.
Each question is worth 20 points, with no partial
credit. If x represents the number of questions
answered correctly and y represents the number
of points awarded, this function can be
represented by the equation y = 20x.
What is a reasonable domain for this function?
A. x ≤ 5
B. 0≤x≤5
C. {0, 1, 2, 3, 4, 5}
D. {0, 20, 40, 60, 80, 100}
