Alabama Learning Exchange
Alex: Midpoint of a Line Segment.
Investigate finding the midpoint of a line segment and derive the formula for the midpoint of two points on a coordinate plane. This lesson plan was created by exemplary Alabama Math Teachers through the AMSTI project.
University of California
Ucla Calculus Problem: Symmetric Equation of a Line
This site explains the steps to finding the parametric and symmetric equations of a line given two points in three dimensions.
Sophia Learning
Sophia: Finding the Slope When Given Two Points
When given two ordered pairs, find the slope of a line. Includes video.
Texas Instruments
Texas Instruments: Getting Started With the Ti Navigator: Equations of My Road
This lesson introduces students to the use of a map of an area, a neighborhood, a favorite city, or an amusement park, to determine the slope of a specific road. Students will find the slope of a line using a coordinate plane.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Equation of a Line Parallel to an Axis
Dr. Math gives a short discussion on how to find the equation of a line parallel to an axis (, parallel or horizontal.)
Varsity Tutors
Varsity Tutors: Hotmath: Slope of a Line
Twenty-two problems present a practice finding the slope of a line. The solutions are only available with a paid subscription.
University of South Florida
Fcat: Spaghetti Bridges: Teacher Notes
Students build bridges and test their strength to collect data and write an equation. The concept of slope is explored in this activity.
CK-12 Foundation
Ck 12: Algebra: Families of Lines
[Free Registration/Login may be required to access all resource tools.] Find the equation of a line that is parallel or perpendicular to a given line.
CK-12 Foundation
Ck 12: Algebra: Slope Intercept Form of Linear Equations
[Free Registration/Login may be required to access all resource tools.] This lesson covers find the equation of a line in slope-intercept form.
CK-12 Foundation
Ck 12: Algebra: Standard Form of Linear Equations
[Free Registration/Login may be required to access all resource tools.] This lesson covers finding the equation of a line in standard form and the intercepts.
Texas Instruments
Texas Instruments: Intersection of a Line With a Parabola
In this activity, students use Computer Algebra System (CAS) tools to find intersections of linear and non-linear equations. They confirm their answers by graphing the equations on the calculator.
CK-12 Foundation
Ck 12: Algebra: Rates of Change
[Free Registration/Login may be required to access all resource tools.] Find the rate of change associated with real-world scenarios.
Math Planet
Math Planet: Algebra 1: Writing Linear Equations Using the Slope Intercept Form
Explains what the slope-intercept form is and how to find the equation of a line given two points on it. Includes modeled video lesson. [3:32]
Illustrative Mathematics
Illustrative Mathematics: The Intersection of Two Lines
The purpose of this task is to introduce students to systems of equations. It takes skills and concepts that students know up to this point, such as writing the equation of a given line, and uses it to introduce the idea that the...
Sophia Learning
Sophia: Find Slope and Rate of Change
This learning tutorial demonstrates how to find the slope of a line and the rate of change for a table. The lesson includes several PowerPoint presentations about slope and even provides practice problems for students to test their...
Khan Academy
Khan Academy: Intercepts From a Table
Find the intercepts of a line given a table of values. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
PBS
Pbs: The Lowdown: What You Need to Know About Immigration Reform
Interpret graphs showing changes over time in the percentage of foreign-born US residents and in annual deportations in this interactive from KQED. In the accompanying classroom activity, students use the interactive and look at how...
TeachEngineering
Teach Engineering: Linear Regression of Bmd Scanners
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.
CK-12 Foundation
Ck 12: Statistics: Scatter Plots on the Graphing Calculator
[Free Registration/Login may be required to access all resource tools.] This lesson covers finding the equation of best fit using a graphing calculator.
McGraw Hill
Glencoe: Self Check Quizzes 2 Lines and Slope
Use Glencoe's Math Course 2 randomly generated self-checking quiz to test your knowledge of lines and slope. Each question has a "Hint" link to help. Choose the correct answer for each problem. At the bottom of the page click the "Check...
Other
Lake Tahoe Community College: Parmetric Equations
Parmametric equations are explained by finding the parametric equation of a line giving two points on a line.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Fitting Linear Equations to Data
Find a quick, concise explanation of how to use data to find the linear equation for it. An example is given and clearly explained.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Line Problems
This site answers many general questions about linear equations and their graphs. A student posed several questions to Dr. Math regarding lines and their equations. Question number 4 is about the equation of a horizontal line and Dr....
Purple Math
Purplemath: Determinant Word Problems
Matrix determinants can be used to solve many algebra and geometry word problems. Among them: finding the area of a triangle, finding the area of a parallelogram, and finding the equation of a line between two points. These three...