Name ___________________________
Class Period ____
Date __________________
ALGEBRA 1
Lesson 5-4
LEQ:
“ Writing a Function Rule”
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Eligible Content
M11.D.1.1.1
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Do Now Exercises
Directions:
1.
Model the function rule with a table of values.
f(x) = 5x - 1
Key Concept
x
f(x)
Writing Function Rules
Examples
Writing a Function Rule from a Table
Directions:
Write a function rule for each table.
1.
x
f(x)
1
2
3
4
5
6
7
8
Ask yourself, “What can I do to 1 _________________ ?”
“What can I do to 2 _________________ ?” and so on.
You
Relate:
________________________________________.
__________________________________
Write the function rule:
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2.
x
y
1
3
6
9
1
9
36
81
Ask yourself, “What can I do to 1 ________________ ?”
“What can I do to 3 ________________ ?” and so on.
You
Relate:
_______________________________________.
_________________________________
Write the function rule:
3.
x
f(x)
1
2
3
4
-1
0
1
2
Ask yourself, “What can I do to 1 ________________ ?”
“What can I do to 2 _______________ ?” and so on.
You
Relate:
_____________________________________________.
_________________________________
Write the function rule:
4.
x
y
1
2
3
4
2
4
6
8
x
g(x)
0
1
3
6
5
6
8
11
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Ask yourself, “What can I do to 1 _________________ ?”
“What can I do to 2 _________________ ?” and so on.
You
Relate:
________________________________________.
__________________________________
Write the function rule:
5.
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Ask yourself, “What can I do to 0 _________________ ?”
“What can I do to 1 _________________ ?” and so on.
You
Relate:
________________________________________.
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Write the function rule:
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Assignment: ______________________________________________________________________