Geometrymedium · Past Paper
If the lines 2x + y - 3 = 0 and kx + 2y - 1 = 0 are parallel, find k.
A2
B4
C-4
D1
✓ Correct Answer: B — 4
Slopes must be equal: -2/1 = -k/2 => -2 = -k/2 => k = 4.
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