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Mathematics
Problem
Let
f
:
R
→
R
f:\mathbb{R}\to\mathbb{R}
f
:
R
→
R
be given by
f
(
x
)
=
5
−
3
x
f(x)=5-3x
f
(
x
)
=
5
−
3
x
. The inverse function
f
−
1
(
x
)
f^{-1}(x)
f
−
1
(
x
)
is a)
x
−
5
3
\dfrac{x-5}{3}
3
x
−
5
b)
5
−
x
3
\dfrac{5-x}{3}
3
5
−
x
c)
5
−
3
x
5-3x
5
−
3
x
d)
5
+
x
3
\dfrac{5+x}{3}
3
5
+
x
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