Answer:
Don't write the " ^ " that I'm typing, that's just showing its to the power of 2 (squared)
1. x^2 + y^2 = 100
2. (x+1)^2 + (y-8)^2 = 25
3. (x+5)^2 + (y+5)^2 =20
4. x^2 + y^2 = 85
5. x^2 + (y+2)^2 = 40
graph 6) middle of circle (dot) at origin (0,0), 5 out in every direction
graph 7) middle of circle (dot) at (-2, 1), 2 out in every direction
graph 8) middle of circle (dot) at (0, -3), 1 in every direction
graph 9) middle of circle (dot) at (1, 1), 4 in every direction
Explanation:
Hope these are right, I just kind of banged them out real quick :)