Mathematics, 03.02.2020 21:57 blakestuhan
The equation of a circle is (x + 3)2 + (y + 5)2 = 8. determine the coordinates of the center of the circle. ? ?
a.) center (-3, -5)
b.) center (3, 5)
c.) center (-5, -3)
d.) center (5, 3)
Answers: 3
![\bf \textit{equation of a circle}\\\\ (x- h)^2+(y- k)^2= r^2 \qquad center~~(\stackrel{}{ h},\stackrel{}{ k})\qquad \qquad radius=\stackrel{}{ r} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ (x+3)^2+(y+5)^2=8\implies [x-(\stackrel{h}{-3})]^2+[y-(\stackrel{k}{-5})]^2=(\stackrel{r}{\sqrt{8}})^2 \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill \stackrel{center}{(-3,-5)}~\hfill](/tpl/images/0497/9902/82d1a.png)
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The equation of a circle is (x + 3)2 + (y + 5)2 = 8. determine the coordinates of the center of the...
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