If the diameter is at (9,4) and (-3,-2), then the center of the circle is the midpoint of that segment.
and since we know that the radius of a circle is half of the diameter, whatever long that diameter segment is, the radius is half that.


Step-by-step explanation:
line a is perpendicular to B.
if the slope of line A is -3/4 what is the line of B
I have drop in a file for u to see it.