For the function
f
(
x
)
=
5
(
x
+
10
)
f(x)=5(x+10), find
f

1
(
x
)
f
−1
(x).


f

1
(
x
)
=
5
x

10
f
−1
(x)=5x−10

f

1
(
x
)
=
x
5

10
f
−1
(x)=
5
x

−10

f

1
(
x
)
=
x
+
10
5
f
−1
(x)=
5
x+10



f

1
(
x
)
=
5
(
x

10
)
f
−1
(x)=5(x−10)