Deepak Bora
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State which one of the following is true: The straight lines y = 3x – 5 and 2y = 4x + 7 are (i) parallel ,(ii) perpendicular , (iii) neither parallel nor perpendicular.

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ICSE Board Question Based on Equation of a Straight Line Chapter of M.L Aggarwal for class10
In this question two straight lines are given so you have to find that whether it is parallel or perpendicular or not both.
This is the Question Number 01, Exercise 12.2 of M.L Aggarwal.


1 Answer

  1. Given straight lines: y = 3x – 5 and 2y = 4x + 7 ⇒ y = 2x + 7/2

    And, their slopes are 3 and 2

    The product of slopes is 3 x 2 = 6.

    Hence, as the slopes of both the lines are neither equal nor their product is -1 the given pair of straight lines are neither parallel nor perpendicular.

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