This exercise is based on the following functions.
f(x) = x^2 + 2 with domain (-?, +?)
g(x) = x - 2 with domain (-?, +?)
h(x) = x + 5 with domain [27, +?)
u(x) = \sqrt{x + 27} with domain [-27, 0)
v(x) = \sqrt{27 - x} with domain [0, 27]
(a) Write a formula for the indicated function.
p = gu
p(x) =
(b) Give the domain. (Enter your answer using interval notation.)
(c) Specify the function's value at the given point a = -18, if defined. (If an answer is undefined, enter UNDEFINED.)
p(-18) =