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4.8: What's My Rule

Difficulty Level: At Grade Created by: CK-12
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Extra for Experts - What's My Rule – Rules for One-Step Function Tables

Write the rule. Complete the tables.

Solutions

1.

\begin{align*}u\end{align*} \begin{align*}v\end{align*}
5 14
8 17
3 12
6 15
1. 9 18
2. 4 13
3. 2 11
4. 7 16
5. Rule: \begin{align*}v = u + 9\end{align*}

2.

\begin{align*}w\end{align*} \begin{align*}y\end{align*}
45 15
68 38
36 6
50 20
1. 61 31
2. 34 4
3. 72 42
4. 56 26
5. Rule: \begin{align*}y = w - 30\end{align*}

3.

\begin{align*}z\end{align*} \begin{align*}a\end{align*}
3 15
8 40
5 25
6 30
1. 1 5
2. 7 35
3. 4 20
4. 2 10
5. Rule: \begin{align*}a = 5 \times z\end{align*}

4.

\begin{align*}b\end{align*} \begin{align*}c\end{align*}
12 3
24 6
20 5
36 9
1. 16 4
2. 8 2
3. 28 7
4. 4 1
5. \begin{align*}c = b \div 4\end{align*}

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CK.MAT.ENG.SE.1.Algebra-Explorations-K-7.5.8
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