How far apart are the two points? That will be r.
As you know, the circle with center at (h,k) with radius r is
(x-h)^2 + (y-k)^2 = r^2
Now just plug in your numbers.
Find an equation for the circle that has center (-1, 4) and passes through the point (3, -2).
(x - ? )2 + (y - ? )2 = ?
3 answers
thats the only info given
Can you not find the distance between two points?
They have given you (h,k). All you need is r.
They have given you (h,k). All you need is r.
1 answer