Please clarify the difference between a Parallel line having infinitely many solutions or no solution. And one line graphs being known as dependent. Thank you,  cscanzy@yahoo.comCynthia

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two lines that will never meet (as in parallel) will therefore never intersect, they will not have a solution. a single strait line will always have the same x or y axis point. this line has infinitely many solutions. ie ...(-1,2)...(0,2)...(1,2)...take your pick