Which algebraic expression represents a number divided by 2?

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