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Ch 18: Lines: NBPTS Math - Adolescence & Young Adult

About This Chapter

Get ready for the NBPTS Math exam by using this interactive chapter. It contains engaging lessons and interactive quizzes that make learning and reviewing parallel, perpendicular and transverse lines fun.

Lines: NBPTS Math - Adolescence & Young Adult - Chapter Summary

By going through the lessons in this chapter, you will examine line segments, rays and different types of lines for the NBPTS Math - Adolescence & Young Adult exam. You will also look at:

  • Finding the slope of a perpendicular line
  • Proving perpendicular line theorems
  • The indirect proof and the parallel postulate
  • Perpendicular bisector theorem
  • Proving lines to be parallel using converse statements

The videos in this chapter average around 5-10 minutes, are interactive and come with corresponding quizzes. Use these quizzes to gauge your understanding after working through the chapter. If you have a question about a math principle from this chapter, you can reach out and get help from one of our expert instructors.

8 Lessons in Chapter 18: Lines: NBPTS Math - Adolescence & Young Adult
Test your knowledge with a 30-question chapter practice test
Line Segments & Rays: Definition & Measurement

1. Line Segments & Rays: Definition & Measurement

Watch this video lesson to learn the difference between a line segment and a ray. You will also learn how to measure and add line segments. Learn why you can't measure or add a ray.

Parallel, Perpendicular and Transverse Lines

2. Parallel, Perpendicular and Transverse Lines

What are the different types of lines? Where are they visible in the real world and how can you recognize them? Find out here and test your knowledge with a quiz.

Parallel Lines: How to Prove Lines Are Parallel

3. Parallel Lines: How to Prove Lines Are Parallel

Watch this video lesson to learn how you can prove that two lines are parallel just by matching up pairs of angles. Learn which angles to pair up and what to look for.

Using Converse Statements to Prove Lines Are Parallel

4. Using Converse Statements to Prove Lines Are Parallel

Because a pair of parallel lines produces unique angle characteristics, we can use this information to our advantage. Watch this video lesson to see how we turn this advantage into converse statements to help us prove parallel lines.

The Parallel Postulate: Definition & Examples

5. The Parallel Postulate: Definition & Examples

In this lesson, you will learn about an important postulate in Euclidean geometry, called the Parallel Postulate. It sounds kind of hard, but this lesson explains it in simple terms and provides several examples of it as well.

Perpendicular Bisector Theorem: Proof and Example

6. Perpendicular Bisector Theorem: Proof and Example

Perpendicular bisectors are multifunctional lines. They're not only perpendicular to the line in question, they also neatly divide it into two equal halves. In this lesson, we'll learn about the perpendicular bisector theorem.

Proving Theorems About Perpendicular Lines

7. Proving Theorems About Perpendicular Lines

In this lesson, you will be introduced to perpendicular lines, and the theorems related to them. You will also see the detailed proofs for these theorems

How to Find the Slope of a Perpendicular Line

8. How to Find the Slope of a Perpendicular Line

In this lesson, we'll introduce the concept of slope and then discuss the relationship between the slopes of two perpendicular lines. Knowing this simple relationship will save you time on many math problems!

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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Other Chapters

Other chapters within the National Board Certification Exam - Mathematics/Adolescence & Young Adulthood: Practice & Study Guide course

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