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MHT CET202015 Oct 2020Morning ShiftMathematicsStraight LinesActual

If the points A(5, k), B(-3,1) and C(-7,-2) are collinear, then k =

Options

  1. A7
  2. B-1 7
  3. C1 7
  4. D-7

Correct answer

A. 7

Step-by-step solution

Slope of A B= Slope of B C array l 1-k -3-5 = -2-1 -7+3 1-k -8 = -3 -4 1-k 2 =-3 k=7 array

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