The equation x2 + y2 + 2x - 4y + 5 = 0 represents: - Vidyadip

MCQ

The equation x² + y² + 2x - 4y + 5 = 0 represents:

A
A point.
B
A pair of straight lines.
C
A circle of non-zero radius..
D
None of these.

✓

Answer

A point

Solution:

The radius of the given circle $=\sqrt{1^1+(-2)^2-5}=0$

Hence, the radius of the given circle is zero, which represents a point.

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