Lesson Plan
Student Achievement Partners

Illustrative Mathematics: Equations of Lines [Pdf]

For Teachers 7th - 9th Standards
In this lesson, students are to interpret graphs with equations of lines.
Activity
Cool Math

Coolmath: Equations of Lines

For Students 6th - 9th Standards
Discover the importance of finding the equations of lines.
Unit Plan
Oswego City School District

Regents Exam Prep Center: Slopes and Equations of Lines

For Students 9th - 10th Standards
Explanation of linear equations and four types of slopes: positive, negative, zero, and undefined. Practice problems for the students are provided and a reinforcement activity using a graphing calculator is offered for the teacher's use.
eBook
CK-12 Foundation

Ck 12: Algebra: Determining the Equation of a Line

For Students 9th - 10th Standards
Write the equations of lines in point-slope form and in slope-intercept form and graph linear equations.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: 8.ee Equations of Lines

For Teachers 8th Standards
In this task, 8th graders are presented with two intersecting line graphs and their linear equations. No values are shown on the axes. They are asked to interpret the constants in the equations in terms of their graphs, and make some...
Lesson Plan
TeachEngineering

Teach Engineering: Graphing Equations on the Cartesian Plane: Slope

For Teachers 7th - 9th Standards
The lesson plan teaches students about an important characteristic of lines: their slopes. Slope can be determined either in graphical or algebraic form. Slope can also be described as positive, negative, zero or undefined. Students get...
Unit Plan
Texas A&M University

Wtamu Virtual Math Lab: College Algebra: Equations of Lines

For Students 9th - 10th Standards
This tutorial covers x & y intercepts, point-slope form, slope-intercept form, graphing, and more. Use the practice problems at the end to check your skills.
Interactive
Math Open Reference

Math Open Reference: Equations of a Line (Slope and Intercept Form)

For Students 6th - 8th Standards
The interactive resource investigates slope and intercept. Students adjust the sliders to control the slope (m) and the intercept (b) of the line. The equation and the line will change accordingly. Learners can also drag the origin.
Activity
Texas Instruments

Texas Instruments: Cabri Jr. The Equation of a L Ine

For Teachers 9th - 10th
This activity uses Cabri Jr. to graph a line and show the equation of the line. The equations for oblique, horizontal and vertical lines are explored with emphasis on slope and y-intercept.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Equations of Parallel Lines

For Students 10th - 12th
[Free Registration/Login may be required to access all resource tools.] This lesson covers finding the equation of a line that is parallel to a given line.
Unit Plan
CK-12 Foundation

Ck 12: Algebra: Determining the Equation of a Line

For Students 9th - 10th Standards
[Free Registration/Login may be required to access all resource tools.] In this lesson students write the equations of lines in point-slope form and in slope-intercept form and graph linear equations. Students examine guided notes,...
Unknown Type
Varsity Tutors

Varsity Tutors: Hotmath: Practice Problems: Graphing Linear Equations

For Students 9th - 10th Standards
Twenty-one problems present a variety of practice graphing linear equations. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem then click the "View Solution" button to...
Activity
Other

Git: What Is the Slope Intercept Form of a Line?

For Students 9th - 10th
Not only does this site show what the slope-intercept form is, but it helps you find the slope and the intercept of a line. There is also additional information on parallel lines, parametric form, and the distance between two points.
Unit Plan
Texas A&M University

Wtamu Virtual Math Lab: Intermediate Algebra: Graphing Linear Equations

For Students 9th - 10th Standards
A simple tutorial that will show you how to graph linear equations and functions after finding the x- and y-intercepts. Provides definitions, steps for sketching a graph, and several examples of linear equations and their graphs....
Unit Plan
Integrated Publishing

Integrated Publishing: Equation of a Straight Line

For Students 9th - 10th Standards
This math tutorial shows the relationship of a slope to a straight line and how to write equations in point-slope or slope-intercept form.
Unit Plan
Math.com

Math.com: Graphing Equations and Inequalities: Slope and Y Intercept

For Students 6th - 8th Standards
The tutorial explores the slope and y-intercept of a linear equation. Notes, examples, and practice problems are included in the resource.
Unit Plan
Mangahigh

Mangahigh: Algebra: Solve Systems of Equations Straight Line Graphs

For Students 9th - 10th Standards
Students learn about the concept of systems of equations by exploring a tutorial. They can then test their knowledge by taking a ten question assessment that increases in difficulty as they correctly answer questions.
Unit Plan
Texas A&M University

Wtamu Virtual Math Lab: Intermediate Algebra

For Students 9th - 10th
This site is a tutorial for students in algebra 2 or for those who need a refresher. The site has explanations, definitions, examples, practice problems and practice tests are found covering topics such as linear equations, graphing,...
Graphic
National Council of Teachers of Mathematics

The Math Forum: Lines and Slope: Chameleon Graphing

For Students 6th - 8th Standards
Join Joan the chameleon in an exploration of lines and slope. You'll be drawing lines, calculating slope, using equations and more!
Unit Plan
PBS

Pbs: Manipulating Graphs

For Students 6th - 8th
Watch how a graph is altered when key elements of the equation change. This lesson focuses on how to manipulate the equation of a line in slope intercept form to match the graphs provided deepening the understanding of both the slope and...
Handout
CK-12 Foundation

Ck 12: Algebra: Lines in the Coordinate Plane Study Guide

For Students 9th - 10th Standards
This comprehensive study guide highlights the main terms and formulas needed to review lines in the coordinate plane. Examples are included.
Activity
Texas Instruments

Texas Instruments: An Exploration of Direct Variation and Linear Regression

For Teachers 9th - 10th Standards
Students will use this activity for the following Algebra concepts: Review of Direct Variation; Properties of direct variations; Finding the constant of variations from data sets; Find missing values in data sets both numerically and...
Handout
Purple Math

Purplemath: Graphing Overview: Straight Lines

For Students 9th - 10th Standards
This resource provides an overview of graphing for various types of functions, instruction on graphing straight lines and also, includes advice on common mistakes made by students.
Activity
TeachEngineering

Teach Engineering: Linear Regression of Bmd Scanners

For Teachers 9th - 10th
Students complete an exercise showing logarithmic relationships and examine how to find the linear regression of data that does not seem linear upon initial examination. They relate number of BMD scanners to time.