SOLUTION: The price of computers has been dropping steadily for the past ten years. If a desktop PC cost $6,000 ten years ago, and the same computing power cost $1,100 three years ago, find

Algebra ->  Finance -> SOLUTION: The price of computers has been dropping steadily for the past ten years. If a desktop PC cost $6,000 ten years ago, and the same computing power cost $1,100 three years ago, find       Log On


   

Question 313252: The price of computers has been dropping steadily for the past ten years. If a desktop PC cost $6,000 ten years ago, and the same computing power cost $1,100 three years ago, find the rate of decrease per year. (Assume a straight-line model
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
(-10,6,000) (-3,1,100)
Slope=(1,100-6,000)/(-3+10)
Slope=-4,900/7
Slope=$-700 per year is the decrease in price.