Question: Plot a 2*2 Matrix

Dear experts, 1. last question: My Matrix M:=Matrix(10,2,[]) has 10 values containing the results f(x) and the second 10 values containing the x values. Now my question is how can I plot these values so f(x) on the y achses and x on the x aches. 2.And: I have a second matrix of the same size and want to plot it into the same graph. How could I do that? Thank you very much in advance !!!!!!
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