By using the trace feature, you can find coordinates and points of interest that lie along any graph you've created. All you have to do is click and hold your mouse button down on top of a graph, and you'll see the closest set of coordinates appear. The trace will stick on points of interest, like maximums, minimums, yintercepts, roots, and intersections.
Tracing a Curve to Find Coordinates
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Troy Alexander Will the trace function be added for polar coordinates? If so, is it known when?

Zachary Boring This is not working for me on a graph of an implicit function. Clicking and holding just moves the coordinate axes. Is that intended?
I just confirmed it does work on an explicit function.
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