The coordinates below are the endpoints of the diameter.
(-6,7)
(4,-1)
a) Find the coordinates of the center.
b) Find the length of the radius.
c) Write the equation of the circle in standard form.

Areflection of shape i across the y-axis, followed by a , and then a translation left 6 units and down 4 units confirms congruence between shape i and shape ii. alternatively, a of shape ii about the origin, followed by a reflection across the y-axis, and then a translation right 4 units and up 6 units confirms congruence between shape ii and shape i.