Line segment in a scatter plot.

Is there a way to create a line segment in the scatter plot Lines and Curves properties?  I basically just want to create 2 line segments that go from 0 to 1 on the y axis at y=5 and one that goes from 0 to 5 at X=1.  The lines will be touching.  I have tried to create a horizontal and vertical line, but they are continuous.  Is there a way to segment them?  Thanks

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