A: ### Quick Answer

**Use the titles of the vertical and horizontal axes of a line graph to understand the plotted points on it.** The horizontal axis reflects an independent variable, such as time elapsed or occurrences of an event, while the vertical axis reflects the effect of that variable on a different factor.

One example of a line graph could track the temperature of a particular place over time. The horizontal axis could reflect the time of day, with marks set up every 15 minutes, every hour, every six hours or the time periods at which measurement of the temperature is desired.

Measuring the temperature at the assigned time provides the information for the points on the graph. The marks going up the vertical axis could begin at zero and go several degrees above the highest temperature that the area generally receives at that time of year; if the temperature goes below zero, then the vertical axis range should include negative numbers. At each assigned time, measuring the temperature provides the coordinates for the point. At 8:00 p.m., if the temperature is 55 degrees Fahrenheit, then the right point to plot would sit above 8:00 p.m. on the horizontal axis and at 55 degrees Fahrenheit on the vertical axis. At the next point in time on the horizontal axis, measuring the temperature again provides the next point. Connecting the points with a line completes the line graph.

Learn more about Data GraphsSources:

- Q:
## How do you make a line graph?

A:To make a line graph there needs to be an X-axis, which is horizontal, and a Y-axis, which is vertical. The two axis represent different sets of data so the data is required too. The easiest way to make a line graph is using a spreadsheet like Excel.

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## How do you draw a frequency polygon?

A:A frequency polygon is a line graph that represents the shapes of the statistical distributions. To draw the graph, simply construct a histogram, and join the middle top points of the bars of the histogram with a line. You need a pencil, a ruler and a piece of paper.

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## What is a line graph?

A:A line graph connects points of data with line segments. Line graphs represent how data changes in value over time or some other form of measurement.

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## What is "x vs y"?

A:In math, the term "x vs. y" typically refers to a two-dimensional coordinate plane containing both x and y axes. The x-axis is represented by the horizontal line moving left and right, while the y-axis is represented by the vertical line moving from top to bottom. The x and y coordinates belong to a process known as the Cartesian coordinate system.

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