Answer:

Step-by-step explanation:
Let (x₁, y₁) = Point A = (-2, 1)
Let (x₂, y₂) = Point B = (1, -1)



13x+2=11x-1
-13x -13x
2=-2x-1
+1 +1
3=-2x
3/-2=-2/-2x
-1.5=x
Diameter is the distance from edge to edge of a circle through the center point. Radius is half the diameter.
Answer:

Step-by-step explanation:
