Function Rules
Pre-Algebra · Flashcards
PRE-ALGEBRA · FLASHCARDS
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QUESTION
Each output of a function is 4 less than its input. What is the function rule?
QUESTION
Which rule in words matches the function
g
(
x
)
=
3
x
+
7
g(x) = 3x + 7
g
(
x
)
=
3
x
+
7
?
QUESTION
A linear function pairs inputs
0
,
1
,
2
,
3
0, 1, 2, 3
0
,
1
,
2
,
3
with outputs
3
,
5
,
7
,
9
3, 5, 7, 9
3
,
5
,
7
,
9
. What is its rule in the form
f
(
x
)
=
m
x
+
b
f(x) = mx + b
f
(
x
)
=
m
x
+
b
?
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ANSWER
f
(
x
)
=
2
x
+
3
f(x) = 2x + 3
f
(
x
)
=
2
x
+
3
. The output is 3 when the input is 0, and it rises by 2 for each 1 added to the input.
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