Hi

Decide whether the pair of lines is parallel, perpendicular or neither.

5x-6y=19    OR  y = (5/6)x - 19/6     | m = 5/6

6x+5y=-30   OR  y = (-6/5)x -6        | m = -6/5

Lines are perpendicular as  5/6*-6/5 = -1

 

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