9. A particular investment is tracked sporadically over 8 years. The value of the investment is shown below: Years after 2 3 5 6 7 8 investment Value of $12,151 $14,588 $18,119 $19,567 $22,559 $24,993 Investment The value of the investment can be modelled by an exponential regression equation a) Using the regression equation, what was the original investment? 12 b) Using the regression equation, what was the annual interest rate? /2 c) If the account was closed after 15 years what would be the value of the investment at that point? What would be an appropriate 13 domain and range for this situation