A line plot is a graphical representation of data that displays information along a number line. It consists of a series of points plotted on a graph, where the x-axis typically represents the independent variable, and the y-axis represents the dependent variable.

Line plots are particularly useful for displaying trends in data over time or across different categories. They are often used to visualize stock prices or weather patterns, and to compare the values of different variables, like sales volumes across various products or the performance of different sports teams. These trends or patterns can aid in making predictions about future values.

In Python, line plots can be created using the plot() function from the matplotlib.pyplot module.