Write a piecewise function that represents the graph given below.

Find the measure of the interior angles of the following regular polygons: a triangle, a quadrilateral, a pentagon, an octagon, a decagon, a 30-gon, a 50-gon, and a 100-gon.

Triangle xyz has vertices x(1,3), y(0,0)

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)