d ko po alam ang sagot
sagot ang alam po ko d
The plan is 100 songs downloaded equally on each week for 5 weeks, so,
100 songs/ 5 weeks; 20 songs per week.
Number of Weeks (x) Songs left to download (y)
1 100
2 80
3 60
4 40
5 20
The rate of change is 20 songs per week.
y = mx + b, input in the STAT feature of the calculator.
m = -20
b = 120