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Ch 28: 8th Grade Math: Graphing Functions

About This Chapter

Your eighth grader will better understand graphing functions through the helpful and interesting videos found in this chapter. Interactive worksheets and lesson quizzes can be accessed at any point before, after, or during the lesson.

Graphing Functions - Chapter Summary

The video lessons found in this chapter will clarify some of the mathematical concepts your middle school student has been learning in class. Instructors cover how to graph functions, how to find slope, and define parabolas. Your child will also learn some formulas, like the midpoint and distance formulas. In addition to the short videos, your child will have access to other resources- such as tests, quizzes, and worksheets.

Chapter Lessons and Objectives

Lesson Objective
Graph Functions by Plotting Points Instructors describe how to plot points on a graph.
Identify Where a Function is Linear, Increasing or Decreasing, Positive or Negative This lesson shows students how to analyze a function based on its graph.
Linear Equations: Intercepts, Standard Form and Graphing In this lesson, students learn how to graph one-variable equations.
How to Find and Apply The Slope of a Line Students study how to identify a function's slope on a graph.
How to Find and Apply the Intercepts of a Line Students investigate how to find a line's intercepts.
Graphing Undefined Slope, Zero Slope and More Using algebra, students graph several different types of slopes.
Equation of a Line Using Point-Slope Formula Instructors explain the point-slope formula and how to apply it.
How to Use The Distance Formula This lesson teaches students how to find the length of a line segment.
How to Use The Midpoint Formula Students find midpoints of line segments in the coordinate plane.
What is a Parabola? In this lesson, students are introduced to parabolas.
Parabolas in Standard, Intercept, and Vertex Form At the end of this lesson, students should be able to graph parabolas in a variety of forms.
How to Graph Cubics, Quartics, Quintics and Beyond This lesson introduces students to types of quadratic equations and how to graph them.

10 Lessons in Chapter 28: 8th Grade Math: Graphing Functions
Test your knowledge with a 30-question chapter practice test
Graph Functions by Plotting Points

1. 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.

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

2. 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

3. 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

4. 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.

Equation of a Line Using Point-Slope Formula

5. 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

6. 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

7. 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.

What is a Parabola?

8. What is a Parabola?

A parabola is the U shape that we get when we graph a quadratic equation. We actually see parabolas all over the place in real life. In this lesson, learn where, and the correct vocab to use when talking about them.

Parabolas in Standard, Intercept, and Vertex Form

9. Parabolas in Standard, Intercept, and Vertex Form

By rearranging a quadratic equation, you can end up with an infinite number of ways to express the same thing. Learn about the three main forms of a quadratic and the pros and cons of each.

How to Graph Cubics, Quartics, Quintics and Beyond

10. How to Graph Cubics, Quartics, Quintics and Beyond

Finding the graph of a polynomial isn't too hard. If you can graph, you already know the major steps! With a couple rules and helpful memorizing tools, you will be graphing polynomials in no time!

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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Other Chapters

Other chapters within the 8th Grade Math: Practice & Review course

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