Graphing linear inequalities in two variables

Lessons

• Introduction
  Introduction to Inequalities
  a)

  Graph the solution on a number line:
  $x = 3$
  $x \ge 3$
  $x$ > $3$
  $x \le 3$
  $x$ < $3$
  
  
  
  b)

  Graph the solution on the xy-plane:
  $x = 3$
  $x \ge 3$
  $x$ > $3$
  $x \le 3$
  $x$ < $3$
  
  
  
  c)

  Graph the solution on the xy-plane:
  $y = -2$
  $y \ge -2$
  $y$ > $-2$
  $y \le -2$
  $y$ < $-2$
  
  
  

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• 1.
  Graphing Linear Inequalities in Two Variables
  Graph:
  i)

  $y = x - 1$
  ii)

  $y \ge x - 1$
  iii)

  $y$ < $x - 1$

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• 2.
  Graphing Linear Inequalities in Two Variables
  Graph:
  i)

  $6x + 5y = 15$
  ii)

  $6x + 5y \ge 15$
  iii)

  $6x$ $+ 5y$ < $15$

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