Elena received a grant for college and the balance in her account for selected months is given in the table below.
Month 1 5 7 11
Balance 22,500 20,900 20,100 18,500
a) Use the information in the table write an equation that represents the balance in Elena’s account for any chosen
month. Write the equation in Slope-Intercept Form.

b) Now, write the equation in Point-Slope Form.

c) Use equation to figure out how much money Elena has in her account after two years.