1
2
3
4
−1
−2
−3
−4
1
2
3
4
−1
−2
−3
−4
0,0
⛶
–
o
+
←
↓
↑
→
f
(
x
)
f
−
1
(
x
)
When the inverse is represented graphically we see that:
a function and its inverse are reflections of each other through the line
y
=
x
.
the domain of
f
(
x
)
is the range of
f
−
1
(
x
)
the range of
f
(
x
)
is the domain of
f
−
1
(
x
)
the functions
f
(
x
)
and
f
−
1
(
x
)
are inverses of each other, so
f
f
−
1
(
x
)
=
f
−
1
f
(
x
)
=
x