Ch 31: THEA Test: Graphing Linear Equations

About This Chapter

Through this chapter, you can brush up on your ability to graph linear equations as you study to take the THEA test in Texas. Review short videos and take self-assessment quizzes to gauge your comprehension of the subject matter.

THEA Test: Graphing Linear Equations - Chapter Summary

The video lessons are designed to simplify the process of preparing for the THEA test by helping you get reacquainted with the graphing of linear equations. In no time, you'll be ready to answer questions that address the following:

  • Defining a linear equation, and examining intercepts and standard form
  • Writing linear equations and graphing functions
  • Understanding abstract algebra examples of linear equations and going from a graph to a rule
  • Making the distinctions between linear, increasing, decreasing, positive and negative functions
  • Finding and applying the slope and intercepts of lines
  • Knowing how to graph undefined slope and zero slope
  • Exploring the use of the distance and midpoint formulas

Instructors make a special effort to keep you engaged as you review the lessons in this chapter. They provide you with definitions, formulas and other details you need to better understand the graphing of linear equations while presenting the materials in a fun and entertaining fashion.

THEA Test: Graphing Linear Equations Objectives

This chapter helps you review topics you will be required to address in the mathematics section of the THEA test. To help you refresh your knowledge of linear equations, you can review the lessons as videos and written transcripts. Short quizzes are available to gauge how well you understand lesson concepts. If you answer any quiz questions incorrectly, simply click the link next to the answer to revisit the related topic in the video lesson.

The THEA test is designed to ensure that individuals interested in entering a Texas public college or university are prepared to perform at the freshman level. The test is broken into three sections with the mathematics section consisting of 50 multiple-choice questions that explore fundamental mathematics, problem solving techniques, geometry and algebra. Passing this section of the test requires earning a minimum score of 230.

12 Lessons in Chapter 31: THEA Test: Graphing Linear Equations
Test your knowledge with a 30-question chapter practice test
What is a Linear Equation?

1. What is a Linear Equation?

Most cars won't be able to run for more than 250,000 miles, so how much longer will your car live? Linear Equations are the most basic kind of algebraic function and can help you answer questions exactly like this. Learn about what they look like, how they come up in your life and why they are powerful tools.

Linear Equations: Intercepts, Standard Form and Graphing

2. Linear Equations: Intercepts, Standard Form and Graphing

Do you know what to do if an equation doesn't look like y=mx+b?! If not, then this video is for you. Chances are the equation is in standard form, so we'll learn how to use standard form equations, how to graph them and why they can be helpful.

How to Write a Linear Equation

3. How to Write a Linear Equation

Simply knowing how to take a linear equation and graph it is only half of the battle. You should also be able to come up with the equation if you're given the right information.

Graph Functions by Plotting Points

4. Graph Functions by Plotting Points

Let's say you have a function. What does it look like? How do you graph it? In this lesson, we'll learn how to graph functions by determining and plotting points.

Abstract Algebraic Examples and Going from a Graph to a Rule

5. Abstract Algebraic Examples and Going from a Graph to a Rule

Just because you now know what a linear equation is doesn't mean that you are a master! This video will help you learn how to apply your knowledge of linear equations in more abstract algebraic ways.

Identify Where a Function is Linear, Increasing or Decreasing, Positive or Negative

6. Identify Where a Function is Linear, Increasing or Decreasing, Positive or Negative

Functions do all kinds of fun things. In this lesson, learn how to identify traits of functions such as linear or nonlinear, increasing or decreasing and positive or negative.

How to Find and Apply The Slope of a Line

7. How to Find and Apply The Slope of a Line

In this lesson, we'll discover all about the slopes of lines. We'll learn about different types of slopes and how to find the slopes of lines. We'll use two methods: the slope formula and the slope-intercept form.

How to Find and Apply the Intercepts of a Line

8. How to Find and Apply the Intercepts of a Line

How can you take an equation of a line and find out where it will cross the x- or y-axis? In this lesson, we'll define x-intercepts and y-intercepts and learn how to find them.

Graphing Undefined Slope, Zero Slope and More

9. Graphing Undefined Slope, Zero Slope and More

There are two special cases when it comes to slopes on the xy plane: horizontal and vertical lines. Without any more information, these examples can be pretty confusing. But with a little instruction, they end up being some of the easiest lines to graph!

Equation of a Line Using Point-Slope Formula

10. Equation of a Line Using Point-Slope Formula

It's time for a road trip to Las Vegas, and after four hours of driving at 60 mph ... Are we there yet? Learn the point-slope form of the equation of a line to help answer this age-old question.

How to Use The Distance Formula

11. How to Use The Distance Formula

You can't always rely on your smartphone to tell you how far you need to travel to get from point A to point B. The distance formula will tell you the distance between any two points on a graph. In this lesson, you'll learn where it comes from and how to use it!

How to Use The Midpoint Formula

12. How to Use The Midpoint Formula

The formula for the midpoint of a line segment will tell you how to find the middle of any line segment on the x, y plane. Learn about this formula and see how it is used to find the midpoint of a line segment.

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

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