Ex 11.2, 3 - y2 = -8x, find focus, axis, directrix, latus - Parabola - Basic Questions

  1. Chapter 11 Class 11 Conic Sections
  2. Serial order wise
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Ex 11.2, 3 Find the coordinates of the focus, axis of the parabola, the equation of directrix and the length of the latus rectum for y2 = – 8x Given equation is y2 = –8x. Since the above equation is involves y2 Its axis is x-axis Also coefficient of x is negative (−) Hence we use equation y2 = − 4ax Latus Rectum is 4a = 4 × 2 = 8

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