The graph below shows the downloads of two songs over time.
Number of downloads
(hundreds)
70
60
50
40
30
20
10
Song 1
Song 2
01234567 8 9 10 11 12 13 14 15
Time (minutes)
Which term describes the slope of the graph of song 1 between minute 3 and
minute 4?
A. Negative
B. Positive
C. It is impossible to calculate
D. Zero