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Given the linear equation 2x + 3y – 8 = 0, write another linear equation in two variables such that the geometrical representation of the pair so formed is: (i) Intersecting lines (ii) Parallel lines (iii) Coincident lines Q.6

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Hello Sir i am confused on the question of class 10th math of exercise 3.2 of question no.6. Please help me for solving this important question Given the linear equation 2x + 3y – 8 = 0, write another linear equation in two variables such that the geometrical representation of the pair so formed is: (i) Intersecting lines (ii) Parallel lines (iii) Coincident lines

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  1. (i) Given the linear equation 2x + 3y – 8 = 0.

    To find another linear equation in two variables such that the geometrical representation of the pair so formed is intersecting lines, it should satisfy below condition;

    (a1/a2) ≠ (b1/b2)

    Thus, another equation could be 2x – 7y + 9 = 0, such that;

    (a1/a2) = 2/2 = 1 and (b1/b2) = 3/-7

    Clearly, you can see another equation satisfies the condition.

    (ii) Given the linear equation 2x + 3y – 8 = 0.

    To find another linear equation in two variables such that the geometrical representation of the pair so formed is parallel lines, it should satisfy below condition;

    (a1/a2) = (b1/b2) ≠ (c1/c2)

    Thus, another equation could be 6x + 9y + 9 = 0, such that;

    (a1/a2) = 2/6 = 1/3

    (b1/b2) = 3/9= 1/3

    (c1/c2) = -8/9

    Clearly, you can see another equation satisfies the condition.

    (iii) Given the linear equation 2x + 3y – 8 = 0.

    To find another linear equation in two variables such that the geometrical representation of the pair so formed is coincident lines, it should satisfy below condition;

    (a1/a2) = (b1/b2) = (c1/c2)

    Thus, another equation could be 4x + 6y – 16 = 0, such that;

    (a1/a2) = 2/4 = 1/2 ,(b1/b2) = 3/6 = 1/2, (c1/c2) = -8/-16 = 1/2

    Clearly, you can see another equation satisfies the condition.

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