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.)
Texas Instruments
Texas Instruments: How to Find the Equation of an Angle Bisector Usin
Challenge your advanced algebra or pre-calculus students to finding the equation of an angle bisector given two intersecting lines. Students can do this in several ways; the lesson plan here walks through two of them in this interesting...
CK-12 Foundation
Ck 12: Geometry: Slope in the Coordinate Plane
[Free Registration/Login may be required to access all resource tools.] Find the slope of a line given two points. Includes a video [5 min. 29 sec.], examples, and review problems along with an answer key.
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...
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.
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.
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.
Other
Karl's Calculus: Derivatives: The Equation of the Tangent
This site goes through a step by step example of how to find the equation of the tangent to a curve using the derivative.
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: 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.
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.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Horizontal Lines
Find a quick, concise explanation of equations of horizontal lines. An example is given and clearly explained for equations of both horizontal and vertical lines.
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: 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]
Khan Academy
Khan Academy: Slope Intercept Equation From Graph
Practice finding the slope-intercept equation of a line from its graph. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Sophia Learning
Sophia: Finding the Slope When Given Two Points
When given two ordered pairs, find the slope of a line. Includes video.
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.
University of South Florida
Fcat: Spaghetti Bridges: Teacher Notes
Learners build bridges and test their strength to collect data and write an equation. The concept of slope is explored in this activity.
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....
Texas Instruments
Texas Instruments: A Wet Welcome Home Adventure 4
Students perform an experiment that simulates a leaking pipe and gather data on volume of water lost over time. They graph the data collected as a scatter plot, find the equation of the line of best fit, find the total volume of water...
Texas Instruments
Texas Instruments: A Sweet Drink Adventure 7
Students determine how the temperature of water affects the dissolving time of a sugar cube. They create, interpret and analyze graphs of data, find an equation of the line of best fit, and relate slope to rate of change.
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...