Answer Key 4.4

x y

$1$ $5$

$0$ $2$

$-1$ $-1$

Check $(0,0)$
$0>3(0)+2$
False
∴ Shade other side
x y

$0$ $-3$

$4$ $0$

$-4$ $-6$

Check $(0,0)$
$3(0)-4(0)>12$
False
∴ Shade other side
x y

$0$ $3$

$-2$ $0$

$-4$ $-3$

Check $(0,0)$
$0\ge 0+6$
False
∴ Shade other side
x y

$0$ $-3$

$2$ $0$

$4$ $3$

Check $(0,0)$
$0-0\ge 6$
False
∴ Shade other side
x y

$0$ $5$

$-2$ $0$

$-4$ $-5$

Check $(0,0)$
$0>0+10$
False
∴ Shade other side
x y

$0$ $-5$

$-4$ $0$

Check $(0,0)$
$0+0>-20$
True
∴ Shade the $(0,0)$ side
x y

$0$ $5$

$-4$ $0$

Check $(0,0)$
$0\ge 0+20$
False
∴ Shade other side
x y

$0$ $-5$

$-2$ $0$

$-4$ $5$

Check $(0,0)$
$0+0\ge -10$
True
∴ Shade the $(0,0)$ side
x y

$6$ $2$

$5$ $1$

$4$ $0$

$3$ $1$

$2$ $2$

$0$ $4$
x y

$6$ $6$

$5$ $5$

$4$ $4$

$3$ $3$

$2$ $4$

$1$ $5$

$0$ $6$
x y

$5$ $3$

$4$ $2$

$3$ $1$

$2$ $0$

$1$ $1$

$0$ $2$

$-1$ $3$
x y

$5$ $5$

$4$ $4$

$3$ $3$

$2$ $2$

$1$ $3$

$0$ $4$

$-1$ $5$
x y

$5$ $-3$

$4$ $-2$

$3$ $-1$

$2$ $0$

$1$ $-1$

$0$ $-2$

$-1$ $-3$
x y

$5$ $-1$

$4$ $0$

$3$ $1$

$2$ $2$

$1$ $1$

$0$ $0$

$-1$ $-1$
x y

$1$ $-3$

$0$ $-2$

$-1$ $-1$

$-2$ $0$

$-3$ $-1$

$-4$ $-2$

$-5$ $-3$
x y

$-5$ $-1$

$-4$ $0$

$-3$ $1$

$-2$ $2$

$-1$ $1$

$0$ $0$

$1$ $-1$

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Intermediate Algebra Copyright © 2020 by Terrance Berg is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License, except where otherwise noted.

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