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Homework Statement
I'm stuck on this problem please help me
find the range of this equation
y = (x^2 - 4)/(x^2 - x - 12)
I know that it is [1/3,-infintiy]U[?,infinity]
yes I'm having trouble with that ?
At first I was like ok there should be a horizontal asymptote at y=1 there is in calculus deffinition the image as x approaches infinity from both sides right? or is just infinity... but you it appraoches one from both sides but it corsses one at x=-8 check the graph so how do I find how low it goes at this section also I can't use a calculator well I can but am suppose to show all work without using one i.e. have one to use not suppose to use it thanks