Question

tobacco use among middle school students
the use of e - cigarettes among young adults has increased steadily over time. according to the graph, how much did this trend change between the years of 2013 and 2014?
key
e - cigarettes
hookahs
cigarettes
smokeless tobacco
2.5%
5%
10%
18%

Explanation:

Step1: Locate e - cigarette percentages

Find e - cigarette percentage in 2013 and 2014 from graph.
In 2013, e - cigarette percentage is about 5%. In 2014, it is about 10%.

Step2: Calculate the change

Subtract the 2013 percentage from the 2014 percentage.
$10\%-5\% = 5\%$

Answer:

5%