When constructing inscribed polygons, how can you be sure the figure inscribed is a regular polygon

In exponential growth functions, the base of the exponent must be greater than 1,how would the function change if the base of the exponent were 1? how would the fiction change if the base of the exponent were between 0and 1

Thelime contains the point(-3,0) and parallel x-3y=3( show all work)

Use circumcenter theorem to solve for the given values