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# Math Mammoth Graphing Linear Equations

77 pages

Sample pages (PDF)

Graphing Proportional Relationships 1

Write the Slope-Intercept Equation

## Prices & ordering

Printed copy \$9.70

Math Mammoth Graphing Linear Equations is a worktext that focuses on various aspects of graphing linear equations and on the concept of slope.

We start out by reviewing what it means when two variables are in a proportional relationship (direct variation, or proportional). Students learn that these relationships are always written in the form y = mx where m stands for the constant of proportionality, which is also the rate of change of the function, and in the context of graphing, the slope.

We spend one lesson comparing proportional relationships represented in different ways: given by a graph, a table of values, an equation, or a verbal statement.

Then, students learn about slope as the ratio of rise over run, or the change in y-values over the change in x-values. They find the slope of lines from a graph or from two points on the line.

The lesson “Slope, Part 2” presents a proof for the fact that it doesn't matter which two points on the line you use to calculate the slope. We also derive the equation y = mx for a line through the origin. In the following lesson, students learn to graph lines with a given slope, and also about vertical and horizontal lines.

Then it is time to derive the slope-intercept form of a linear equation: y = mx + b, and learn to use it in the context of graphing. Students also find that equation for already plotted lines.

Next, we take a closer look at horizontal and vertical lines and their equations. Then, the standard form is introduced. The last topic of the book is parallel and perpendicular lines. The book ends in a review lesson, followed by the answer key.

The book meets the Common Core Math Standards 8.EE.5 and 8.EE.6, plus provides material for related topics (e.g. vertical and horizontal lines, standard form, perpendicular and parallel lines).

The PDF version of this book can be filled in on a computer, phone, or tablet, using the annotation tools found in many PDF apps. See more.

## Better Yet - Bundle Deals!

*BONUS*: Buy any bundle listed above, and get the fully upgraded Soft-Pak software for FREE (includes 4 math and 2 language arts programs, complete with on screen and printable options).

## How and where to order

You can buy Math Mammoth books at:

• Here at MathMammoth.com website — simply use the "Add to cart" buttons you see on the product pages.
• Rainbow Resource carries printed copies for the Light Blue series books, plus several CDs (Light Blue and Blue series).
• Homeschool Buyers Club offers download versions of the Light Blue series, plus the Blue series bundle.
• Homeschool Planet sells the digital versions of the main curriculum and lesson plans to go with them.
• Lulu sells printed copies for most of the Math Mammoth materials (various series).

By purchasing any of the books, permission IS granted for the teacher (or parent) to reproduce this material to be used with his/her students in a teaching situation; not for commercial resale. However, you are not permitted to share the material with another teacher.

In other words, you are permitted to make copies for the students/children you are teaching, but not for other teachers' usage.

Math Mammoth books are PDF files. I recommend you use Adobe Reader to view them, including if you use a Mac. You can try other PDF viewers, but they may at times either omit or mess up some of the images.
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