# Find the equation of a sphere if one of its diameters has endpoints: (-8, -4, -13) and (4, 8, -1)

Find the equation of a sphere if one of its diameters has endpoints: (-8, -4, -13) and (4, 8, -1)
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Wayne Everett
center is in the middle so it is (-2,2,-7). radius is half the diameter length so. $5\sqrt{144+144+144}=6\sqrt{3}$
$\left(x+2{\right)}^{2}+\left(y-2{\right)}^{2}+\left(z+7{\right)}^{2}=108$