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If f(x) = -x-2, what is f¹(x)?
Suszterpatt
asked
May 23, 2023
183,858
views
41
votes
41
votes
If f(x) = -x-2, what is f¹(x)?
Mathematics
high-school
Suszterpatt
asked
May 23, 2023
by
Suszterpatt
3.2k
points
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1
Answer
21
votes
21
votes
Answer:
f¯¹(x) =9x+18
,
for
the
pictorial
(
image
)
question
what
is
the
send
question
is
it
asking
derivative
or
inverse
If
it
is
inverse
f
¯
¹
(
x
)
=
-
x
-
2
as
it
is
Or
if
it
is
derivative
f'
(
x
)
=
-
1
Explanation:
For
the
image
question
f
(
x
)
=
1
/
9
x
-
2
,
f
¯
¹
(
x
)
=
?
f
(
x
)
=
1
/
9
x
-
2
.
.
.
.
.
.
.
.
.
.
.
.
given
y
=
1
/
9
x
-
2
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
swapping
f
(
x
)
by
y
to
Easily
write
x
=
1
/
9
y
-
2
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
interchanging
x
and
y
1
/
9
y
-
2
=
x
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
changeling
side
of
equation
9
(
1
/
9
y
-
2
)
=
(
x
)
9
.
.
.
.
.
.
.
multiplying
both
sides
by
9
to
override
the
fraction
on
the
right
side
y
-
1
8
=
9
x
y
=
9
x
-
1
8
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
Return to where
it
were
f
¯
¹
(
x
)
=
9
x
+
1
8
.
.
.
.
.
.
.
.
.
.
swap
back
f
¯
¹
(
x
)
in
the
y
For
the
question
f
(
x
)
=
-
x
-
2
,
f
¯
¹
(
x
)
=
?
following
the
☝️
arrangement
y
=
-
x
-
2
x
=
-
y
-
2
-
y
-
2
=
x
-
y
=
x
+
2
y
=
-
x
-
2
f
¯
¹
(
x
)
=
-
x
-
2
Khaelex
answered
May 27, 2023
by
Khaelex
2.3k
points
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