2x–2y–2=0, 4x–4y–5=0 chapter-3 ex 3.1-Q4 (iv)

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 4. Which of the following pairs of linear equations are consistent/inconsistent? If consistent, obtain the solution graphically:

(iv) 2x–2y–2=0, 4x–4y–5=0

      2x-2y–2=0 ----------(1)

      4x-4y–5=0 ---------(2)

      a1/a2 = 2/4 = 1/2,  b1/b2 = -2/-4 = 1/2 

      c1/c2 = -2/-5 

      from the above we can say

      a1/a2 = b1/b2 ≠ c1/c2

   above formula belongs to parallel lines

   parallel lines are inconsistent

    Not required graphically

See Exercise 3.1 Solutions 

Post details

Name of Chapter : Pair of Linear Equations in Two Variables

Chapter 3

Exercise 3.1 Q4.iv

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