the amount of money Harry has saved directly related to the number of CDs his band has sold. (please help, this assignment is due tomorrow!)

Question

at one check last year his accountant told him that he had $35,580 after selling 12,200 CDs. After selling 6,400 more he now has $53,500. how much is he saving with each CD? how much did he start with? provide an equation in slope intercept form and use it to predict the number of CDs he will need to sell in order to have $1,000,000.

Answer 1

Start with two-point form:

(y - 35500) / (x - 12200) = (53500 - 35580) / (18600 - 12200)

Convert to slope-intercept form.

The y-intercept (the "b") is the original savings.