The revenue R, in billions of dollars

Question

The revenue R in billions of dollars, for all gaming can be estimated by the formula R = 9/2 x - 8939, where x is a year from 2000 to 2008. Find the year when gaming revenue was 61 billion by solving the equation 61 = 9/2 x - 8939.

Answer 1

Alysha, let's do the math...

 

    61 = (9/2)x - 8939

+8939            + 8939

9000 = (9/2)x

9000(2/9) = (9/2)x(2/9)

2000 = x

 

Hope this helps!