I. Identify the standard form of the following circles.
1. Center; (2,-1) r=4 2. Endpoints of the diameter (2,-1) and (6,3) 3. The center of the circle is (-3,2) passes through (8,0) 4. The circle passes through (2, -1), (3,1) and (-1,0) 5. The circle is tangent to the line x - y and has a center of (0,-2)
II. Identify if the graph exist on the following equation.
III. Identify the equation of the circle in standard and general form.
1. Center; (2,-2) r= 1/2 2. The endpoints of the diameter are (1,3) and (-1,3) 3. The circle is concentric with x² + y² – 2x + 6y + 5 = 0 and passes through (3,-5)