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How do you determine the domain and sketch the graph of the reducible function for: f(x) = (x + 2) / (x^2 -x - 6 )
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http://www.wolframalpha.com/input/?i=domain+f%28x%29+%3D+%28x+%2B+2%29+%2F+%28x^2+-x+-+6+%29
The domain of the original function is x is all reals except -2 and 3. If you factor the denominator you get f(x) = (x + 2) / ((x-3)(x+2)) cancel out the x+2 terms f(x) = 1/(x-3) If you graph this function, your original function is the same except it has a hole at x = -2.
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