Use the data shown in the graph to write a quadratic regression equation. Then predict the box office revenue in Box office revenue O 2012. Let x represent the number of years since 2000. 23:2 21.7 Millions of dollars 21 2 20- 20.9 19- 2001 2002 2003 2004 2005 2006 Year a. The quadratic regression equation is y = (Type an expression using x as the variable, Use integers or decimals for any numbers in the expression. Round to the nearest thousandth as needed.)