Acircle is centered at the point (-7, -1) and passes through the point (8, 7).

the radius of the circle is units. the point (-15, ) lies on this circle.

The radius of the circle is 17 units. The point (-15,-16) or (-15,14) lies on this circle.

Step-by-step explanation:

It is given that the circle is centered at the point (-7, -1) and passes through the point (8, 7).

Distance formula:

Using distance formula we get,

The radius of the circle is 17 units.

Let the circle passing through the point (-15,y).

Taking square root both the sides.

Taking square root both the sides.

The value of y is either -16 or 14.

Therefore the radius of the circle is 17 units. The point (-15,-16) or (-15,14) lies on this circle.