line graph

mathematics

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Last updated

June 30, 2026

Quick Summary

A line graph is a type of graph used in mathematics to visually represent data. It connects points representing variable values with a broken line. These graphs are useful for showing general trends in quantitative data, which can help in making predictions.12

Typically, a line graph uses two axes: a horizontal axis for independent variables and a vertical axis for dependent variables. The most common type of line graph uses time as the independent variable, plotting data points and connecting them to illustrate changes over time, such as seasonal sales fluctuations.2

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The line graph H of a graph G is a graph the vertices of which correspond to the edges of G, any two vertices of H being adjacent if and only if the corresponding edges of G are incident with the same vertex of G.
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The line graph H of a graph G is a graph the vertices of which correspond to the edges of G, any two vertices of H being adjacent if and only if the corresponding edges of G are incident with the same vertex of G.
Read More