If y + 3x = 0 is the equation of a chord of the circle, x2 + y2 - 30x = 0, then the equation of the circle with this chord as diameter is : Option 1) Option 2) Option 3) Option 4)

As we learnt in

Equation of a circle in diametric form -

- wherein

Where are the two diametric ends.

given that

Hence y=0, -9

In diametric form

Option 1)

Incorrect option

Option 2)

Correct option

Option 3)

Incorrect option

Option 4)

Incorrect option