Graphing an Inequality Solution on a Number Line (Part 2)

The video tutorial explains how to represent inequalities on a number line using examples. It starts with a real-world scenario of a roller coaster height requirement, represented by the inequality h ≥ 4. The tutorial demonstrates graphing this inequality on a number line with a solid dot at 4 and an arrow to the right. It also covers the use of solid and open dots to represent different types of inequalities. Another example, x ≤ 8, is graphed with a solid dot at 8 and an arrow to the left. The lesson concludes by summarizing the process of graphing inequalities on a number line.

What is the minimum height required to ride the roller coaster?

• 3 feet

• 4 feet

• 6 feet

• 5 feet

How is the inequality 'h is greater than or equal to 4' represented on a number line?

• With a solid dot at 4 and an arrow to the left

• With a solid dot at 4 and an arrow to the right

• With an open dot at 4 and an arrow to the left

• With an open dot at 4 and an arrow to the right

What type of dot is used to represent values that are included in the solution of an inequality?

• Hollow dot

• Solid dot

• Closed dot

• Open dot

When graphing 'x is less than or equal to 8', where is the solid dot placed?

• At 9

• At 7

• At 8

• At 10

What is the purpose of using an open dot on a number line?

• To mark the midpoint of the number line

• To indicate the start of the number line

• To show values that are not included in the solution

• To show values that are included in the solution