The linear function is given by y = -2000x + 30000
A linear function is a function in the form:
y = mx + b
where y,x are variables, m is the rate of change and b is the y intercept.
Let y represent the value of the car after x years.
From the graph, the line passes through point (0, 30000) and (3, 24000), hence:
[tex]y-30000=\frac{24000-30000}{3-0} (x-0)\\\\y=-2000x+30000[/tex]
Find out more on linear function at: https://brainly.com/question/15602982