Math Open Reference
Math Open Reference: Perpendicular Lines
A complete reference guide to perpendicular lines. It provides definitions, examples, and an interactive activity that enhances further explanation. Includes links to related topics.
Math Open Reference
Math Open Reference: Slope of a Line
Learn about the slope of a line with this helpful reference tool. Provides a detailed definition, examples, and an interactive activity that enhances further explanation. Includes links to related topics.
Math Open Reference
Math Open Reference: Intercept of a Line
A complete reference guide to finding the intercept of a line. It provides definitions, examples, and an interactive activity that enhances further explanation. Includes links to related topics.
CK-12 Foundation
Ck 12: Interactive Geometry: 10.4 Slope of Parallel and Perpendicular Lines
Understand how to find the slope of parallel and perpendicular lines.
PBS
Pbs Learning Media: Comparing Slopes
This interactive exercise focuses on linear equations and how a positive or negative slope affects the graphical representation.
PBS
Pbs: The Lowdown: Made in America: The High Cost of Fashion
Investigate data on changes over time in where our apparel is made and how much we spend on it in these images from KQED. In the accompanying classroom activity, students use the interactive and graph the data. They also look for...
PBS
Pbs: The Lowdown: Analyzing Functional Relationships: An Equitable Society?
In this interactive, explore data presented in a series of graphs to evaluate whether we are any closer to having an equitable society than we were in 1963, the year of the historic March on Washington. In the accompanying classroom...
PBS
Pbs: String Product: Finding the Y Intercept
Examine how a giant piece of art at the National Museum of Mathematics reveals some unexpected relationships between coordinates on a parabola. This video focuses on the relationship between negative and positive points on the parabola...
PBS
Pbs: Ski Jumping: Understanding Proportional Relationships
Investigate the slopes involved in ski jumping. This video focuses on defining slope, showing how to calculate slope on a graph, with an expression, and positive and negative slopes.
PBS
Pbs: Xy Flyer
Explore the behavior of lines by composing equations to launch a toy airplane through a series of hoops. This interactive exercise focuses on working in the coordinate plane and deepening the understanding of how slope and y-intercept...
Louisiana Department of Education
Louisiana Doe: Louisiana Believes: Eureka Math Parent Guide: Linear Equations
A guide to support parents as they work with their students in linear equations.
PBS
Pbs: Stairway Slope
Use the stairs in your home to understand slope in the real world. This video focuses on reinforcing your understanding of slope as rise over run and placing measurements into ratios.
PBS
Pbs: Slope and House Construction
Discover how math is required for quality construction when a Master Carpenter shares his experience and expertise. This video focuses on explaining slope as rise over run and shows how slope comes into play when building homes to take...
Other
Nearpod: Linear Equations & Graphs
For this lesson on linear equations and graphs, students will learn how to graph linear equations and create linear equations based upon real-life word problems.
Other
Nearpod: What Is Slope?
In this lesson plan on slope, students explore how the rate of change can be identified using a graph, a set of points, and a table.
Houghton Mifflin Harcourt
Harcourt: School Publishers: Positive Slope
Contains one example of a line with a positive slope. Included is the equation for the line and a definition of a positive slope.
Houghton Mifflin Harcourt
Harcourt: School Publishers: Negative Slope
This site provides an example of a negative slope, including the equation of the line shown. Also given is a definition of a negative slope.
Math.com
Math.com: Graphing Equations Unit Quiz
The unit quiz consists of eight true or false questions that examine graphing linear equations. Solutions are provided.
Wolfram Research
Wolfram Math World: Algebra
MathWorld provides a basic overview of Algebra. Includes a few formulas and many links to related topics.
Windstream
Ojk's Precalculus Study Page: Functions of Two Variables
An introduction to functions with two variables, including several examples relating to linear programming. The tutorial includes graphical examples of the functions and also review questions located at the bottom of the page.
Wolfram Research
Wolfram Math World: Slope
This site from MathWorld.com provides charts, links, and definitions pertaining to slope.
Shodor Education Foundation
Shodor Interactivate: Linear Functions
This website introduces the concept of linear functions in slope intercept form.
Texas A&M University
Wtamu Virtual Math Lab: Intermediate Algebra: The Slope of a Line
This tutorial will show you how to find a the slope of graph, write a linear equation in slope-intercept form. You'll also learn how to determine whether two lines are parallel or perpendicular to each other. For advanced math students.
Northeast Parallel Architectures Center, Syracuse University
Npac Reu Program: Point Slope Form
This Northeast Parallel Architectures Center of Syracuse University site contains a brief description of the point-slope form for equations along with the formula.