Q. The circle $x^{2} + y^{2} + 4x - 4y + 4 = 0$ touches
A) $x$-axis
B) $y$-axis
C) $x$-axis and $y$-axis
D) None of these
Explanation
(c)
Here centre $( - 2,\ 2)$ and radius is 2
Hence, both coordinates and radius is same, so it touches both axes
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.