The correct answers are D. 0 and E. 1
A function [tex]f[/tex] from a set A to a set B is a relation that assigns to each
element [tex]x[/tex] in the set A exactly one element in the set B. The set A is the
domain (also called set of inputs) of the function and the set B contains the range
(also called set of outputs). According to this statement the set of values that [tex]y[/tex] take is the range, so as shown in the Figure above:
First.
[tex]y=1 \ when \ x=0[/tex]
Second.
[tex]y=0 \ when \ x=-1 \ and \\ y=0 \ when \ x=1[/tex]
