CPM Homework Help : CC3 Problem 3-28

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

IN $(x)$

in (x) column 1 $2$

in (x) column 2 $10$

in (x) column 3 $0$

in (x) column 4 $7$

in (x) column 5 $–3$

in (x) column 6 blank

in (x) column 7 $–10$

in (x) column 8 $100$

in (x) column 9 $x$

OUT $(y)$

out (y) column 1 $–6$

out (y) column 2 $–30$

out (y) column 3 $0$

out (y) column 4 blank

out (y) column 5 blank

out (y) column 6 $15$

out (y) column 7 blank

out (y) column 8 blank

out (y) column 9 blank

Explain in words what is done to the input value, $x$ , to produce the output value, $y$ .
Answer (a):
If you multiply $x$ by $-3$ , you get $y$ .
Write the process you described in part (a) in algebraic symbols.
Answer (b):
$-3x=y$