Directions: Use the information given to write the equation of the circle in standard form,
16 center: (-10, -4). point on circle: (4.-2)
17. center: (-9,-3), point on circle: (-11,2)
18. center: (5, -7), point on circle: (-3, -1)
19. center: (8, 2), point on circle: (14,-1)
20. endpoints of diameter: (13, -1) and (-15, 9) 21. endpoints of diameter: (6. -2) and (10,-
22. endpoints of diameter: (-8, 12) and (0, 2)
23. endpoints of diameter: (8, -1) and (-2, 3)