Tuesday, July 14, 2009

What value of c would give a system with no solution? Math help!!?

x + 2y = 6


cx - 4y =8





Please show all the stepas, to this equation. thanks

What value of c would give a system with no solution? Math help!!?
multiply 1st equation by -2 to match up y coefficients:


-2x - 4y = -12


cx - 4y = 8





if c = -2 there will be no solution, since


-2x - 4y cannot equal both -12 and 8


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