X 2.1.AP-10 Question Help
Zachary purchased a computer for $1,500 on a payment plan Four months after he purchased the computer, his balance was $960. Six months after he purchase
the computer, his balance was $690. What is an equation that models the balance y after x months?
The equation models the balance y after x months

Best answer that i found on yahoo ok   set :   x= length of 2nd piece in cm  x- 3= length of 1st piece in cm  x-4= length of 3rd piece in cm  then since you know they all came from the 20 cm ribbon you add them together and set them equal to 20x+ x-3 +x-4 = 20  3x - 7= 20  3x= 27  x= 9  the shortest piece is the third piece which is x- 4  x-4  9-4 = 5  the length of the smallest piece is 5 cm.  the other lengths are  9 cm  6 cm

If you make you answer for clear i can answer it : )

Do you need with the x value for the minimum? its always between the two intercepts for a parabola