Line graphs (sometimes called linear equations) are a type of graph that produce a straight line when plotted. You can plot a line graph in one of two ways: by entering a set of data points or by entering an equation. Use an online line graph utility like the grapher at the National Center for Education Statistics (NCES) or at ChartGo.com to plot points and chart a colorful graph. Or, if you know the equation for the line, use an online graphing calculator to plot your graph.
Navigate to the NCES website. Fill in the options for your line graph by clicking on the tabs at the right hand side.For example, on the "Data" tab, you can fill in the chart title and axis labels. The Data tab is also where you enter your points for the line graph: enter your X values in the "Item Label" list and the Y values in the "Value" list. Print your chart by clicking on the "Print/Save" tab and choosing "Print."
Go to ChartGo.com's line graph site. Click on the drop down boxes to select different aspects of your chart. For example, select a "Horizontal" or "Vertical" graph under "Orientation." Enter your X values and Y values under chart data (there is sample data there to give you an idea of how to enter it). Click on the "Create Chart" button to create your chart then click on the "Print" button in your browser.
Use the graphing calculator at Holt Online Learning (see Resources) to draw a line graph for any equation. Enter your equation into the "Y1" box (for example, x^2) and then click the "Graph" button. Use the "Print Screen" function button to print your graph.
Tips & Warnings
- You only need to plot two sets of points to graph a linear equation, because all points fall on the same line.
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