The function is .

Observe the graph the function is constant on the interval .

The function is .

Make the table

\ x \	\ \	\ \	\ \
\ \	\ \	\ \
\ \	\ \	\ \	\ \
\ 0 \	\ \	\ \	\ \
\ 1 \	\ \	\ \	\     \
\ \	\ \	\ \

Observe the table of the function is constant on the interval , since the input value x and out value g(x) are same.