3 years ago

URGENT URGENT HELP NEEDED! I AM BEGGING...PLS SOLVE A GEOMETRY QUESTION. I HAVE ATTACHED THE SNIP. THANKS

1 answer:

5 0

$(x-h)^2+(y-k)^2=r^2\\
(h,k)-\text{ center}\\\\
x^2+y^2-6x+8y+21=0\\
x^2-6x+9+y^2+8y+16-4=0\\
(x-3)^2+(y+4)^2=4\\
\text{center}=(3,-4)\\
r=\sqrt4=2$

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