Asked by Carol
Find an equation for the circle that has center (-1, 4) and passes through the point (3, -2).
(x - ? )2 + (y - ? )2 = ?
(x - ? )2 + (y - ? )2 = ?
Answers
Answered by
Steve@Math
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.
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.
Answered by
Carol
thats the only info given
Answered by
Steve@Math
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.
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