Question

Chee keeps track of the number of people inside a music hall to attend a concert by looking at the number of scanned tickets. She plotted the data on the graph below, where x, equals, 0x=0 represents the time at 6 p.m., then drew a line of best fit. What does the slope of the line represent?
0
x
y
0
People Inside Music Hall
Hours Past 6 p.m.
Answer
Multiple Choice Answers
The average change in the number of hours since 6 p.m. for every additional person.
The number of hours past 6 p.m. when there is 1 person in the music hall.
The number of people in the music hall 1 hour after 6 p.m.
The average rate of change in the number of people over time.

Answer 1

The average rate of change in the number of people over time.

Explanation: x is hours past 6 p.m. and y is people, so the slope is change in people per hour (people/hour) — the average rate people are entering (or leaving) the hall.