Understand the Function Concept
8th Grade Math · Flashcards
8TH GRADE MATH · FLASHCARDS
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QUESTION
Identify the domain of
{
(
−
1
,
2
)
,
(
0
,
2
)
,
(
3
,
5
)
}
\{(-1,2),(0,2),(3,5)\}
{(
−
1
,
2
)
,
(
0
,
2
)
,
(
3
,
5
)}
.
QUESTION
Identify whether
{
(
1
,
2
)
,
(
1
,
3
)
,
(
2
,
4
)
}
\{(1,2),(1,3),(2,4)\}
{(
1
,
2
)
,
(
1
,
3
)
,
(
2
,
4
)}
is a function.
QUESTION
What is
f
(
0
)
f(0)
f
(
0
)
for the function
f
(
x
)
=
−
3
x
+
5
f(x)=-3x+5
f
(
x
)
=
−
3
x
+
5
?
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ANSWER
5
5
5
. Substitute:
f
(
0
)
=
−
3
(
0
)
+
5
=
0
+
5
f(0) = -3(0) + 5 = 0 + 5
f
(
0
)
=
−
3
(
0
)
+
5
=
0
+
5
.
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