Question
Question: The equation of the diameter of the circle x<sup>2</sup> + y<sup>2</sup> –6x + 2y – 8 = 0 is given ...
The equation of the diameter of the circle
x2 + y2 –6x + 2y – 8 = 0 is given by
A
x +3y = 0
B
x – 3y = 0
C
x – 2y = 0
D
x + 2y = 0
Answer
x +3y = 0
Explanation
Solution
x2 + y2 – 6x + 2y – 8 = 0 ...... (i)
centre (3, – 1)
Then, coordinates of the centre will satisfy the equation of the diameter.