Find the slope of the line passing through the points (6, 7) and (6, -5).

undefined

It is undefined because if you put it on a graph you get a line going straight down.

127

whether it's diameter, or radius, i believe if i remember correctly from school, every amount has to always add up to 180. so if you take 53, and starting adding, long story short, taking 127 and adding it to 53, gives you 180.