Class 11 Mathematics Chapter 1
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Questions and Answers

Which of the following is the correct formula for the distance between two points A(x1, y1) and B(x2, y2) in a plane?

  • AB = sqrt(x2 - x1 + y2 - y1)
  • AB = (x2 - x1)(y2 - y1)
  • AB = sqrt((x2 - x1)^2 + (y2 - y1)^2) (correct)
  • AB = (x2 + x1)(y2 + y1)

    • What is the slope of the line passing through the points (3, -2) and (5, 4)?

  • -3
  • 3
  • -2
  • 1/2 (correct)

    • What is the equation of the line passing through the points (2, 3) and (4, 5)?

  • y = -x + 5
  • y = x + 1
  • y = x + 3 (correct)
  • y = 2x + 1

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