a line graph is used for showing change / data over time & a line graph is a kind of graph of connected data points -> a point personality is used for nut static over space through connected cool breeding a line graph is used for showing change over time through connected data points  a point personality is used for nut static over space through connected cool breeding & the change in squirrels' population over time needs to be shown in a graph -> the change in squirrels' population over time can be shown using a line graph through connected data points