A circle passes through (−2, 4) and touches the y - axis at (0, 2). Which one of the following equations can represent a diameter of this circle ?
As we learnt in
Family of circle -
- wherein
Equation of the family of circles passing through point of intersection .
Using Family of circles equation is
Since circle touches x=0 at the point
we get,
It passes through
Thus,
equation of circle is
Option 1)
Incorrect
Option 2)
Correct
Option 3)
Incorrect
Option 4)
Incorrect
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