One more option, in Asymptote.
artofproblemsolving.com/texer/blankg...

Example with those labels, axes, etc.
artofproblemsolving.com/texer/pzptjzws

Hit "render as image", then right click and it will download as a png or copy-paste.

Scatter plot template: artofproblemsolving.com/texer/scatter