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Class 11

Straight Lines: Mixed Practice, Quiz

Five mixed questions on straight lines. Pick one answer for each.

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

  1. Find the equation of the line through (1,1)(1, 1) with inclination 135∘135^\circ.
  2. Find the point on the xx-axis equidistant from (2,3)(2, 3) and (6,1)(6, 1).
  3. Find the acute angle between y=3x+1y = \sqrt{3}x + 1 and y=13x\displaystyle y = \tfrac{1}{\sqrt{3}}x.
  4. Where do the lines x+y=7x + y = 7 and x−y=1x - y = 1 meet?
  5. A phone bill is ₹200200 for 100100 minutes and ₹300300 for 300300 minutes. Assuming a linear relation, what is the fixed charge?
Unanswered questions are marked wrong.

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