A specific section of Goofy's gastronomic tract can be modeled by the function: () = + + where x represents distance traveled by the scope, in cm, and g x( ) refers to the vertical height within the body relative to the belly button, in cm.

a) Rewrite equation in factored form. Show all of your work.

b) Use this information to sketch a graph, by hand, of this section of Goofy's small intestine. [

c) Determine the domain of this function in interval notation.