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AP EAMCET201726 Apr 2017Evening ShiftMathematicsStraight LinesActual

A variable line through the point P (-1,2) cuts the coordinate axes at A and B respectively. If Q is a point on AB such that PA , PQ and PB are in a harmonic progression, then the locus of Q is

Options

  1. Ay^2=2 x
  2. Bx^2+y^2=1
  3. Cy=2 x
  4. Dx^2=4 y

Correct answer

C. y=2 x

Step-by-step solution

No solution. Refer to answer key.

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