### Home > INT2 > Chapter 10 > Lesson 10.2.1 > Problem 10-57

Marty has saved

Month | Investment A | Investment B | Investment C |

Describe the growth of each investment.

Investment A grows

per month.

Investment B grows atper month.

Investment C grows by quadratic rate.Calculate the average rate of change of each investment from Month

to Month . Remember that rate of change is another way of saying slope.

What is the equation for slope?Assume each investment continues to grow in the same way it has grown during the first six months. If Marty plans to invest his money for many years, which investment is the best choice.

Depends on how many years but over a long time exponential is best.