The amount of time required to download a song from michael's computer to his music player is the same for each song he downloads. a linear model of this situation contains the values (100, 80) and (212, 169.6), where x represents the number of songs he wants to download to his music player, and y represents the total amount of time, in minutes, it will take him to download the songs. what is the rate of change in this linear model? a. 1.6 minutes per song b. 0.4 of a minute per song c. 0.8 of a minute per song d. 112 minutes per song