What are the restrictions on the variables in the rational expression 12xy/6xy

Choose the point slope form of the equation below that represents the like that passes through the points (-6,4) and (2, 0)

Determine the domain and range of the given function. the domain is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}. the range is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}.

Ineed here’s a picture of the question