The following graph is called a broken-line graph,or simply a line
graph. This particular graph shows the past, present, and future predicted
U.S. population over 65. Just as with a bar graph, to
find the population over 65 for a particular year, read the height of the
corresponding point. To read the height, follow the point horizontally to the
left until you reach the vertical axis.
(GRAPH CANNOT COPY)
The percent of Americans over 65 in 1950 was \(8.1 \%\). The percent of
Americans over 65 in 2050 is expected to be
2.5 times the percent over 65 in \(1950 .\) Estimate the percent of Americans
expected to be over age 65 in 2050 .