1) Gathering the data
$2800
4 years
V(X)=0
2) Writing a Linear function that expresses this devaluation according to the time. In the slope-intercept form.
y=mx+b
As we're dealing with devaluation or depreciation of the value of that computer over time, we have to write -4x, since each year the value is decreasing. Hence, We can write:
V=2800-4x
3) As we can see this straight line:
Of that linear function. In this case, the line stops at x=0. It does not go under the x-axis.
