### Home > INT3 > Chapter 7 > Lesson 7.2.3 > Problem 7-84

7-84.

Barnaby’s grandfather is always complaining that

Assuming the price has increased exponentially and that same dinner never cost less than

, write the equation of a function that models the cost in relationship to the number of years from now. Begin by defining variables.

Letthe number of years

Letthe cost of a dinner

You need to write an equation of the form.Use the points

and . The horizontal asymptote (or vertical shift in this case) is (or).How much would you expect the same dinner to cost

years from now? Let

in your equation from part (a).Answers vary depending on precision used, about