We can add an equation to a graph in excel by using the excel equation of a line. Graph equations in excel are easy to plot and this tutorial will walk all levels of excel users through the process of showing line equation and adding it to a graph.
Figure 1: Graph equation
- We will tabulate our data in two columns.
Figure 2: Table of Data
- We will then highlight our entire table and click on “insert”, then we will then select the “scatter chart” icon to display a graph
Figure 3 – Scatter chart
Figure 4: Graphical Representation of Data
- We will now click on the “+” icon beside the chart to edit our graph by including the Chart Title and Axes. We will also remove the gridlines.
Figure 5: Edited Graph Parameters
- We will now add the equation of the chart by right clicking on any of the point on the chart, select “add trendline”, then scroll down and finally select “Display Equation on Chart”.
Figure 6: Equation of a line
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