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| Image generated by AI using Bing Image Creator | 
I've
 been evaluating free online graphing tools for creating graphics on 
maths tutorials. Many allow very little user control over plot colour, 
plot thickness, axis tick frequency, grid steps, grid colour, grid line 
thicknesses, navigating (panning and zooming) etc. Some are good at one 
thing but don't allow control over other attributes of a graph or output
 resolution of saved images is low. Eventually I found this website with lots of graphing tools. The Geogebra tools include online 2D & 3D graph calculators, tools for drawing geometric figures and
 a scientific calculator. There's also downloadable applications for 
Windows and an Android app.