Page 163 - Math Course 1 (Book 1)
P. 163
Understanding Inequalities
MO. 5 - L3b Graph x ≤ 10 on a number line.
Graphing Inequalities Answer
8 9 10 11 12
Let’s Begin The closed circle means the number 10 is included
in the graph.
Graph Inequalities Write an Inequality
Examples Example
Graph x > 10 on a number line. Write the inequality for the graph.
Answer
-40 -39 -38 -37 -36
A closed circle is on –38, so the point –38 is
8 9 10 11 12
included in the graph. The arrow points to the
right, so the graph includes all numbers greater
The open circle means the number 10 is not than or equal to –38.
included in the graph.
Graph x ≥ 10 on a number line. Answer The inequality is x ≥ –38.
Answer
Your Turn!
8 9 10 11 12 Graph Inequalities
The closed circle means the number 10 is Graph x < 3 on a number line.
included in the graph.
A.
Graph x < 10 on a number line. 1 2 3 4 5
Answer B.
1 2 3 4 5
8 9 10 11 12 C.
1 2 3 4 5
The open circle means the number 10 is not
included in the graph. D.
1 2 3 4 5
Answer
155
