Question 1092504
<br>If x=7 corresponds to year 2007, then x=9 corresponds to year 2009.  So you are doing the right thing.<br>
Do you know what the answer is supposed to be, and you are getting a different answer?  Try performing the calculation again; maybe you made an error in your calculations the first time.<br>
Or maybe your answer is right, and the answer you think you are supposed to get is wrong....<br>
By the way, are you sure you have the revenue function right?  The function you show has the company losing hundreds of billions of dollars every year.<br>
(Maybe the "company" is the US treasury...? LOL)