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Finding an equation in point slope form of the lines through point P(2,0) that are a) parallel to, and b) perpendicular to the line x+2y=3

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for parallel lines m=-1/2
equation: y-0=-(x-2)/2
x+ 2y=4
for perpendicular lines m=2
equation: y=2x-4
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User AlexJF
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