# Plot a Function on a Graph

It is possible to graph a function to fit plotted data in CODAP. This works with graphs that contain two variables.

1. Select the graph.

2. Click on the Ruler icon. Check "Plotted Function."

3. In the Formula Editor, enter the value of the expression you want to plot. Press the "Apply" button.

Plotted functions can also contain dynamic variables, like sliders, as can be seen below.

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