Question

The domain of both f(x) = x - 6 and g(x) = x + 6 is all real numbers. What is the domain of h(x) = (x-6)/(x+6)

Answer 1

The function is not defined when the denominator is zero.
x + 6 ≠ 0 x ≠ -6
Domain = (All real numbers except x ≠ -6)
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