You can
put this solution on YOUR website! a "function" must be
which means "one and only one"; to each value of
there is a
value of
.
The values that
may assume are called the
of the function, and those are the values for which the function is
.
In the function
, the
may include
; consequently,
could be
.
But, there is
case in which the domain
be restricted, and that is the case when a denominator
.
So, in this function
a denominator
may not be equal to
because to divide by
doesn’t make a sense.
Let set it equal to
in order to find what
may not be in a domain:
Solution:
In a domain could be all other real numbers except
.
Domain: (
,
] and [
,
)
