Show graphically that each one of the following systems of equations is in-consistent (i.e. has no solution):


3x – 5y = 20 passes through (20/3, 0) and (0, -4)


6x – 10y = - 40 passes through (-20/3, 0) and (0, 4)


Both are parallel lines, thus system of equations is in-consistent.


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