What are the domains of the following functions?

a) [[$ f(x) = \sqrt {x + 1} $]]



Answer: The domain is [[$ x $]] [[$ ≥ $]]

b) [[$ g(x) = \displaystyle\frac {x} {x} $]]



Answer: The domain is [[$ x $]] [[$ ≠ $]]

c) [[$ h(x) = \displaystyle\frac {6} {x + 2} $]]



Answer: The domain is [[$ x $]] [[$ ≠ $]]