Graphing Inequalities on a Number Line

What should you do before watching this video?

• Skip to the end of the video.

• Solve some inequality problems.

• Watch the previous videos on inequalities.

• Read a book on inequalities.

Which symbol represents 'less than' in inequalities?

• <

• ≥

• ≤

• >

How is 'x is less than negative two' represented on a number line?

• With a closed circle at -2 and shading to the left.

• With an open circle at -2 and shading to the left.

• With a closed circle at -2 and shading to the right.

• With an open circle at -2 and shading to the right.

What type of circle is used for 'x is greater than 4' on a number line?

• Closed circle

• Open circle

• Half-open circle

• No circle

In which direction do you shade for 'x is greater than 4'?

• Both directions

• To the right

• To the left

• No shading

How is 'x is less than or equal to 3' represented on a number line?

• With a closed circle at 3 and shading to the left.

• With an open circle at 3 and shading to the left.

• With a closed circle at 3 and shading to the right.

• With an open circle at 3 and shading to the right.

What type of circle is used for 'x is less than or equal to 3'?

• Half-open circle

• Closed circle

• No circle

• Open circle

In which direction do you shade for 'x is less than or equal to 3'?

• No shading

• To the right

• Both directions

• To the left

How is 'x is greater than or equal to negative 1' represented on a number line?

• With a closed circle at -1 and shading to the right.

• With an open circle at -1 and shading to the left.

• With an open circle at -1 and shading to the right.

• With a closed circle at -1 and shading to the left.

What type of circle is used for 'x is greater than or equal to negative 1'?

• No circle

• Closed circle

• Open circle

• Half-open circle