LESSON 9 / SESSION 2 LESSONS
y
25
3 The growth in earnings for a digital music service is shown in
the graph. What is the equation of the line? Show your work.
Define your variables.
20
Deve
of the
15
Earnings (millions of $)
10
Reac
5
A 60
0
0
the
2
4
6
8
Time (quarters of a year)
The
the
dri