What is the main purpose of a line graph?
a. to compare two things b. to show trends over time
c. to have an independent variable d. so you don't have to read words
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a) A line graph is commonly used to display change over time as a series of data points connected by straight line segments on two axes. The line graph therefore helps to determine the relationship between two sets of values, with one data set always being dependent on the other set.
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