The slope of the line is the rate of change, and the y-intercept is the point where the line crosses the y-axis. The equation of a linear trendline is y=mx+b, where y is the dependent variable, m is the slope of the line, x is the independent variable, and b is the y-intercept. You can use the equation of the trendline to make predictions about future data points. Excel will automatically calculate the trendline and add it to your graph. To add a linear trendline to your data, select the "Linear" option from the trendline menu. They are best used with linear data, which is data that increases or decreases at a constant rate.
Linear trendlines are the simplest type of trendline. Select the type of trendline you want to use. A menu will appear with different types of trendlines you can add to your data. Then, click the "Insert" tab on the ribbon and click the "Trendline" button. To add a trendline to your Excel graph, first select the data you want to use to create the trendline. In this article, well show you how to add a trendline to your Excel graph and interpret the results. Trendlines are best used with linear data, but you can also add them to logarithmic, polynomial, and exponential data. Adding a trendline to your Excel graph can help you see patterns in your data and make predictions about future data points.
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