For (-1,2) you go to the left one and up two.
For (-3,6) left three up six
For (4,8) right four and up eight
15/ 100
To simplify divide both by 5
15/100 / 5 = 3/20
A circle obviously. A perpendicular bisector requires right angles which a circle can physically never have.
I don't believe you can. It would end up being 1/2 for all the terms so just leaving it as a fraction would be neater.
