Answer:
D = -6, E = -8 , F = 0
Step-by-step explanation:
standard form =
now, when circle passes through (3,-1);
⇒
⇒ ...............( equation 1)
when circle passes through (-2,4);
⇒
⇒ ...............( equation 2)
when circle passes through (6,8);
⇒
⇒ ................( equation 3)
by solving these 3 equations , we get;
D = -6, E = -8, F = 0
hence,
standard form =
=