2x - ky + 7 = 0 and  6x - 12y + 15 = 0 has no solution

Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.
Advertisement

 Multiple Choice QuestionsMultiple Choice Questions

Advertisement

1.

 2x - ky + 7 = 0 and  6x - 12y + 15 = 0 has no solution for

  • k = 1

  • k = -1

  • k = 4

  • k = -4


C.

k = 4

Given equations,
      2x - ky + 7 = 0,   6x - 12y + 15 = 0
For no solution,
       rightwards double arrow space space space space straight a subscript 1 over straight a subscript 2 space equals space straight b subscript 1 over straight b subscript 2 space not equal to space straight c subscript 1 over straight c subscript 2 space space
rightwards double arrow space space space 2 over 6 space equals space straight k over 12 space not equal to 7 over 15 comma space space straight k space equals space 4


Advertisement
Advertisement