The lines 2x-y=8 and 4x -2y=16 intersect

Intersection is what point satisfies both equaitons
divide second equation by 2 for simplificy
2x-y=8
oh dear, we got the same equation
therefor they are the same line
infinitely many points
anywhere on the line 2x-y=8
some points are
(4,0)
(5,2)

anywhere on the line 2x-y=8

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Not enough information