Question 858784
For x extremely negative or extremely positive, f approaches 1.


f is undefined at {{{x=-4}}}, creating there an asymptote.


f is 0 for x=3.


{{{(0-3)/(0+4)=-3/4}}}, the y-intercept.


Domain:  Remember the vertical asymptote?  Domain is all real numbers but {{{x<>-4}}}.  {{{x<-4}}} and {{{x>-4}}} is the domain.