The domain of the rational function (x+9)/(x^2 - 144) is all real numbers except where the denominator is zero. The expression x^2 - 144 is undefined at x = 12 and x = -12, which are the points where the function cannot be evaluated. Therefore, the domain in interval notation is (-∞, -12) ∪ (-12, 12) ∪ (12, ∞). This conclusion is essential for understanding the behavior of the function across its defined intervals.
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krzyeghts8888 said:(1 pt) The domain of the function
(x+9)/(x^2 -144)
domain must be in interval notation