CPM Homework Help : CC3 Problem 3-4

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3-4.

For each $x$ → $y$ table given, copy the table, find the pattern and fill in the missing entries. Then write the rule for the pattern in words.

IN $(x)$
OUT $(y)$
$23$
$2$
$8$
$–2$
$–4$
$8$
$26$
$0$
$302$
$1.5$
Rule:

IN $\left(x\right)$
OUT $\left(y\right)$
$2$
$5$
$9$
$–2$
$–5$
$–7.5$
$0$
$27.5$
$–4$
$–10$
Rule:

IN $\left(x\right)$
OUT $\left(y\right)$
$1$
$4$
$4$
$3$
$–20$
$–9$
$–10$
$0$
$1$
$–2.5$
Rule:

Hint:

Refer to problem 3-3 that you completed in class.

More Help:

Here are some answers to get you started.

IN $\left(x\right)$
OUT $\left(y\right)$
$\color{orange}7$
$23$
$2$
$8$
$-2$
$-4$
$8$
$26$
$0$
$\color{orange}2$
$302$
$1.5$

IN $\left(x\right)$
OUT $\left(y\right)$
$2$
$5$
$9$
$\color{orange}{22.5}$
$-2$
$-5$
$-7.5$
$0$
$\color{orange}{11}$
$27.5$
$-4$
$-10$

IN $\left(x\right)$
OUT $\left(y\right)$
$1$
$4$
$4$
$3$
$-20$
$-9$
$-10$
$\color{orange}{-4}$
$0$
$1$
$-2.5$

Answer (a):

Rule: Triple $x$ and add $2$ .

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