Paying the rent
A checking account is set up with an initial balance of \$4800, and \$400 is removed from the account each month for rent (no other transactions occur on the account).
- Write an equation whose solution is the number of months, $m$, it takes for the account balance to reach \$2000.
- Make a plot of the balance after $m$ months for for $m=1,3,5,7,9,11$ and indicate on the plot the solution to your equation in part (a).