In SAS Visual Analytics, the Scatter plot supports a "Fit Line", use either the right mouse button or the options pane to add it.
See https://documentation.sas.com/doc/en/vacdc/default/vaobj/n02h2a3i8htlhln1o4ngyz6f1ox5.htm#p0bvwvf3yyxx1bn18whdz89b78ub for more details
However the Scatter plot only supports measures. So currently there is no point and click way of creating such a graph using a measure and a date.
You could use the TreatAs operator to convert the date to a measure and then use it in the scatter plot, but you will loose the date information, but you would see the data points as well as the fit line.
Then there is always the Data Driven Content object that will allow to use for instance D3.js to do something like this or run some SAS code and generate a graph.
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