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Parallel and Perpendicular LnieIndependent Practice1. Indicate whether the lines are parallel, perpendicular. or neither. Justify youranswer.a, y = 4x-1 and 12x3y+ 7b. x-7y-10 and 2x +14y 21c. 5x +6y 18 and 18x -15y 36d. x-1 and y-1 |
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Answer» For perpendicular lines product of slopes should be -1 and parallel lines have same slope so a) product of slopes is 4*(1/4) = 1 , neither.b) product of slopes is (-1/7)*(1/7) = -1/49 , neither.c) product of slopes is (6/5)*(-5/6) = -1 , perpendicular.d) these are also perpendicular. |
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