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TS EAMCET · Maths · Circle

The equation of the circle that touches the Y-axis at a distance of 4 units from the origin and cuts off an intercept of 6 units on the X-axis is

  1. A x2+y2±5x-8y+16=0
  2. B x2+y2±2x-4y=0
  3. C x2+y2±3x-2y-8=0
  4. D x2+y2±10x+8y+16=0
Verified Solution

Answer & Solution

Correct Answer

(D) x2+y2±10x+8y+16=0

Step-by-step Solution

Detailed explanation

In △CAD, AC=r, AD=3, CD=4 ⇒r2=32+42=25 ⇒r=5 Coordinate of C(r,4)≡C(5,4) Similarly, C1(-5,4) Equation of circle (x±5)2+(y-4)2=25 ⇒x2+y2±10x-8y+16=0