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Class 10

Two Lines: Intersecting, Parallel or Coincident, Quiz

Five questions on intersecting, parallel and coincident lines. Pick one answer for each.

5 questions, one mark each. 3 to pass. Suggested time: 10 minutes. Your answers are not recorded.

  1. The lines x+y=7x + y = 7 and x−y=3x - y = 3 meet at which point?
  2. How many solutions does the pair 3x+2y=63x + 2y = 6 and 3x+2y=123x + 2y = 12 have?
  3. The pair 2x−3y+5=02x - 3y + 5 = 0 and 6x−9y+15=06x - 9y + 15 = 0 represents which kind of lines?
  4. For a1x+b1y+c1=0a_1x + b_1y + c_1 = 0 and a2x+b2y+c2=0a_2x + b_2y + c_2 = 0, which condition gives exactly one solution?
  5. Written as ax+by+c=0ax + by + c = 0, what is cc for the equation 4x+y=94x + y = 9?
Unanswered questions are marked wrong.

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