Determining Functions
Pre-Algebra · Flashcards
PRE-ALGEBRA · FLASHCARDS
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QUESTION
What value of
k
k
k
makes
{
(
3
,
7
)
,
(
4
,
1
)
,
(
3
,
k
)
}
\{(3, 7), (4, 1), (3, k)\}
{(
3
,
7
)
,
(
4
,
1
)
,
(
3
,
k
)}
a function?
QUESTION
Why is the graph of
x
=
3
x = 3
x
=
3
not a function?
QUESTION
Why is
{
(
1
,
2
)
,
(
2
,
3
)
,
(
1
,
4
)
}
\{(1, 2), (2, 3), (1, 4)\}
{(
1
,
2
)
,
(
2
,
3
)
,
(
1
,
4
)}
not a function?
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ANSWER
The input 1 is paired with two outputs, 2 and 4.
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