AM-2326

Equation of a circle (centre–radius form)

A Math · Secondary 4 · Medium · Equation of a circle (centre–radius form)

1. Centre $(4,-1)$, radius $3$
2. Centre $(-4,1)$, radius $3$
3. Centre $(4,1)$, radius $9$
4. Centre $(-4,-1)$, radius $9$

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