alleryThe equation of a circle is simplest when its centre is at the:
AOutline
BOpening
COrdinate
DOrigin
Answer & Solution
Correct answer: D. Origin
1. Both coordinates of the centre become zero.
2. The equation then loses two terms.
3. It is simplest at the origin.
_Source: syllabus Mathematics, Ch 10 'Conic Sections'_
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