CPM Homework Help : CC3 Problem 3-13

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3-13.

Copy and use your pattern skills to complete the table below.

IN (x)

$2$

$10$

$6$

$7$

$-3$

$-10$

$100$

$x$

OUT (y)

$5$

$21$

$13$

$-15$

Answer:

IN (x)

$2$

$10$

$6$

$7$

$-3$

$\color{orange}{-8}$

$-10$

$100$

$x$

OUT (y)

$5$

$21$

$13$

$\color{orange}{15}$

$\color{orange}{-5}$

$-15$

$\color{orange}{-19}$

$\color{orange}{?}$

$\color{orange}{?}$

Explain in words what is being done to the input value, $x$ , to produce the output value, $y$ .
Hint (a):
Notice the output is two times the input plus one.

Write the process you described in part (a) in algebraic symbols.
Hint (b):
Write part (a) in symbols remembering that input is $x$ and output is $y$ .
Answer (b):
$y=2x+1$

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