Chris has $100 in his savings account and he adds $20 a month to the account. The total amount can be represented by the linear function T = 20x + 100. His goal is to have a total of $300 in four more months. What should he change in the function to reach this goal?

Question

anonymous · Answer

Let a is the amount of money Chris put in each month
   T      =    20x + 100 
" total of $300 in four more months. 
   $300 =   4a + 100