Wyatt just got his commercial driver's license and is starting a new career as a truck driver.
Getting trained and licensed involved a one-time cost of $500. Gas and insurance end up
costing him $4 per mile. For his first delivery, Wyatt will get paid $400 plus $6 per mile that
he drives. If he drives a certain distance on this delivery, Wyatt will break even, making back
all the money he had to spend. How much would both the costs and the earnings be?

Write a system of equations, graph them, and type the solution.