Newspaper Ad Revenue The table lists U.S. print newspaper advertising reve...

Newspaper Ad Revenue The table lists U.S. print newspaper advertising revenue (in billions of dollars).

(a) Find the point–slope form of the line that passes though (2006, 48) and (2010, 22). Let be (2006, 48).

(b) Find the point–slope form of the line that passes though (2008, 35) and (2012, 10). Let be (2008, 35).

(c) Interpret the slope of the line from part (b).

(d) Use equations from parts (a) and (b) to predict the revenue for 2009.