# Question: in 2005 a company was worth 10 million each year...

###### Question details

In 2005, a company was worth $10 million. Each year, its value
increases by $2 million.

(a) Write down a model for the company’s value over time.

To avoid having to use huge numbers, make your independent variable
the number

of years since 2005 (i.e. 2005 would be year 0) and make the
dependent variable

the value in millions of dollars, not the value in dollars (i.e.
when the independent

variable is 0, the dependent variable is 10, instead of
10,000,000).

(b) Find the company’s value in 2015.

(c) Determine when the company will be worth $40 million. Note that
your answer

should be a year.

Hint: This question is asking us to solve for x given a certain
value of y.