Question

If the lines 2x + 3y + 1 = 0 and 3x – y – 4 = 0 lie along diameters of a circle of circumference 10π, then the equation of the circle is

(a) x² + y² – 2x + 2y – 23 = 0

(b) x² + y² + 2x + 2y – 23 = 0

(c) x² + y² – 2x – 2y – 23 = 0

(d) x² + y² + 2x – 2y – 23 = 0

Answer 1

(a) x² + y² – 2x + 2y – 23 = 0