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Which axis does the circle x² + y² + 4x − 6y + 4 = 0 touch?
AThe Y-axis
BBoth axes
CNeither axis
DThe X-axis
Answer & Solution
Correct answer: D. The X-axis
The centre is (−2, 3) and r = √(4 + 9 − 4) = 3, which equals the y-coordinate, so it touches the X-axis.
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