Graphing linear inequalities in two variables

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Intros

Lessons

Introduction to Inequalities
Graph the solution on a number line:
$x = 3$
$x \ge 3$
$x$ > $3$
$x \le 3$
$x$ < $3$
Graph the solution on the xy-plane:
$x = 3$
$x \ge 3$
$x$ > $3$
$x \le 3$
$x$ < $3$
Graph the solution on the xy-plane:
$y = -2$
$y \ge -2$
$y$ > $-2$
$y \le -2$
$y$ < $-2$

Examples

Lessons

Graphing Linear Inequalities in Two Variables
Graph:
i)
$y = x - 1$ $y = x - 1$
ii)
$y \ge x - 1$ $y \geq x - 1$
iii)
$y$ $y$ < $x - 1$ $x - 1$
Graphing Linear Inequalities in Two Variables
Graph:
i)
$6x + 5y = 15$ $6 x + 5 y = 15$
ii)
$6x + 5y \ge 15$ $6 x + 5 y \geq 15$
iii)
$6x$ $6 x$ $+ 5y$ $+ 5 y$ < $15$ $15$

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