Write the equation of a circle with center (2, –8) and radius 9.
(x + 2)^2 + ( y - 8 )^2=9
2 answers:
Answer:
Step-by-step explanation:
Answer:
(x-2)^2+(y+8)^2=81
Step-by-step explanation:
so equation of a circle standard form:
(x-h)^2+(y-k)^2=r^2
where
(h,k) are the coordinate points
so lets substitute h=2 and k=-8
(x-2)^2+(y+8)^2=9^2
(x-2)^2+(y+8)^2=81
Hope this helps!
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