Perhaps the most central concept in all of mathematics is that of
a
function. You need to understand the concepts of
rule,
domain, and
range, and what it means to
evaluate a function at a number or an
algebraic expression that may itself be defined by a function.
For this and the next two problems let
Two numbers
not in the domain of are
and
. (Enter the numbers in increasing size.)
You can earn partial credit on this problem.