Read Inverses from Graphs or Tables
Algebra · Flashcards · Application
ALGEBRA · FLASHCARDS
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QUESTION
Identify
f
−
1
(
0
)
f^{-1}(0)
f
−
1
(
0
)
if a graph of
f
f
f
crosses the
y
y
y
-axis at
(
0
,
7
)
(0,7)
(
0
,
7
)
.
QUESTION
What is
f
−
1
(
3
)
f^{-1}(3)
f
−
1
(
3
)
if the graph of
f
f
f
includes
(
−
1
,
3
)
( -1,3)
(
−
1
,
3
)
?
QUESTION
Which value equals
f
−
1
(
y
)
f^{-1}(y)
f
−
1
(
y
)
if a table shows the pair
(
x
,
y
)
=
(
7
,
20
)
(x,y)=(7,20)
(
x
,
y
)
=
(
7
,
20
)
for
f
f
f
?
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ANSWER
f
−
1
(
20
)
=
7
f^{-1}(20)=7
f
−
1
(
20
)
=
7
. The inverse reverses the input-output pair
(
7
,
20
)
(7,20)
(
7
,
20
)
.
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