The number (in millions) of U.S. cellular telephone subscribers can be described by , where x is the number of years past 1990. For years beyond 2010, does this graph increase or decrease? (Look at this graph in a window that includes these years.)
A) increases
B) decreases

Question

The number (in millions) of U.S. cellular telephone subscribers can be described by  , where x is the number of years past 1990. For years beyond 2010, does this graph increase or decrease? (Look at this graph in a window that includes these years.) ​
A) increases 
B) decreases

Quizplus · Accepted Answer

Looking at the graph, we can see that the function is increasing from 1990 to 2010. Therefore, we can assume that the trend will continue beyond 2010 and the function will still be increasing.

The Number (In Millions) of U