A factory owner buys a new machine for $27,000. After eight years, the machine has a salvage value of $4000. Find a formula for the value of the machine V after t years, where 0 ≤ t ≤ 8. V(t) =

Question

A factory owner buys a new machine for $27,000. After eight years, the machine has a salvage value of $4000. Find a formula for the value of the machine V after t years, where 0 ≤ t ≤ 8.

V(t) = 

 

Answer 1

You could use two-point form

(0, 27000), (8, 4000)

(V(t) - 27000) / (t - 0) = (4000 - 27000) / (8 - 0)

Can you solve for V(t) and answer?