Find the Equation of a line Parallel/Perpendicular to another line through a Point | SHS 1 CORE/ELEC

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Find the Equation of the line Parallel / Perpendicular to another line through a point (x1,y1)

In today's video, we are going to learn how to find the equation of a line parallel or perpendicular to another line passing through a point (x1,y1)
1. Two lines are said to be parallel when they have the same gradient ie. gradient of line A = gradient of line B.

2. Two lines are said to be perpendicular if the product of their gradients is negative 1 (-1). given that m1 = m, then m2 will be the negative reciprocal of m1, thus m2 = -1/m1;

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