How do you find the range of a rational function with a slant asymptote?

The range is the value of x. In this case, x+2≠0, x≠-2, so the range is all real numbers except -2

Note: This function has a slant asymptote because the polynomial in the numerator is 1 higher degree (2nd power) than the denominator (1st power). 

“exterior angles of triangles. an exterior (or external) angle is the angle between one side of a triangle and the extension of an adjacent side. try this drag the orange dots on any vertex to reshape the triangle.” look to get to the answer i explained what it means and other things i hope it you .