Suppose the cost of a business property is 3450000 and a com

Suppose the cost of a business property is $3,450,000 and a company depreciates it with the straight-line method. If V is the value of the property after x years and the line representing the value as a function of years passes through the points (40,1010000) and (50,400000), write the equation that gives the annual value of the property.

Solution

first we have to find slope of the stright line

slope(m)= 400000 - 1010000 / 50-40

m = -610000/10

m = -61000

so line is y = -61000x +3450000