Question 1066374
{{{sqrt((-8-(-6))^2+(9-8)^2)}}}
{{{sqrt(4+1)}}}
{{{sqrt(5)}}}
-
Radius squared,  {{{(sqrt(5)/2)^2=5/4}}}


Center at
{{{x=(-8-6)/2=-7}}}
and
{{{y=(9+8)/2=17/2=8&1/2}}}



{{{highlight((x+7)^2+(y-8&1/2)^2=5/4)}}}