Graphing an Inequality Solution on a Number Line (Part 1)

The video tutorial explains how to represent and graph inequalities on a number line. It uses the example of a baker planning to bake more than two cakes to illustrate the inequality C > 2, showing how to plot this on a number line with an open circle at 2 and an arrow indicating values greater than 2. It then covers another inequality, X < 9, demonstrating how to plot an open circle at 9 and an arrow pointing to values less than 9. The tutorial emphasizes understanding the concept of open circles and arrows to represent possible solutions.

How do we represent the inequality C > 2 on a number line?

• With an open circle at 2 and an arrow pointing left

• With an open circle at 2 and an arrow pointing right

• With a closed circle at 2 and an arrow pointing left

• With a closed circle at 2 and an arrow pointing right

What does the arrow signify in the inequality C > 2?

• The baker can bake less than two cakes

• The baker can bake exactly two cakes

• The baker can bake any number greater than two

• The baker cannot bake any cakes

How is the inequality X < 9 represented on a number line?

• With a closed circle at 9 and an arrow pointing right

• With an open circle at 9 and an arrow pointing left

• With a closed circle at 9 and an arrow pointing left

• With an open circle at 9 and an arrow pointing right

Which of the following is a possible solution for X < 9?

• 11

• 10

• 9

• 8

What type of numbers are also solutions for X < 9?

• Only positive numbers

• Only even numbers

• Only whole numbers

• Negative numbers