Using the graph for Social Media Usage by Age, select two points from the graph of Age group 30-49 and form a y=mx+b model letting x be the number of years after 2005 and y the percent. Use your model to predict in what year the percent reaches 100%. (Show your equation and round your final answer to the nearest year). Be sure to state your conclusion in complete sentences. Using the model predict how many years it would take Age group 30-49 to reach the same level of usage as the Age group 18-29 in the year 2015. (Show your equation and round your final answer to the nearest number of whole years it would take). Be sure to state your conclusion is complete sentences.