Question 1092201
CENTER:
{{{system(x=(2+(-4))/2=-1,y=(-1+(-3))/2=-4/2=-2)}}}, the point (-1,-2)



RADIUS:
{{{(1/2)*sqrt((2-(-4))^2+(-1-(-3))^2)}}}

{{{(1/2)*sqrt(6^2+2^2)}}}

{{{(1/2)*sqrt(36+4)}}}

{{{(1/2)*sqrt(40)}}}



RADIUS raised to power 2:
{{{(1/4)*40}}}
{{{10}}}



EQUATION OF CIRCLE:
{{{highlight((x+1)^2+(y+2)^2=10)}}}


{{{graph(300,300,-5,5,-7,3,-2-sqrt(10-(x+1)^2),-2+sqrt(10-(x+1)^2))}}}