Coincident or parallel lines
Coincident or parallel lines
3 marks
TGM Original
The lines 2x-y=5 and 4x-2y=c have equal gradients. Find the value of c for which they coincide, and state the values for which they are distinct and parallel.
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Answer:Coincident for \(c=10\); distinct and parallel for \(c\ne10\).
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