AM-801

Equation of a circle (centre–radius form)

A Math · Secondary 3 · Medium · Equation of a circle (centre–radius form)

1. $(x+1)^2+(y-4)^2=9$
2. $(x+1)^2+(y-4)^2=18$
3. $(x+1)^2+(y-4)^2=144$
4. $(x-1)^2+(y+4)^2=9$

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