Question 206039: hello, I have a question on linear equation that models the following situation:
The World of Frying Pans buys a computer for 4000 dollars. After 3 years the computer will be worth 400 dollars. What is the linear equation that relates the value of the computer(V) to the age of the computer(a)?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! The World of Frying Pans buys a computer for 4000 dollars. After 3 years the computer will be worth 400 dollars. What is the linear equation that relates the value of the computer(V) to the age of the computer(a)?
--------------------------------------------------
You have two points relating time and cost: (0,4000), (3,400)
------------------------------------------------
slope: (400-4000)/(3-0) = -1200
---
intercept: v(0) = 4000
-----------------------------
Equation: v(a) = -1200a + 4000
====================================
Cheers,
Stan H.
|
|
|
