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: Linear Functions: Slope Using Coordinates
Students learn that the slope is ratio of change in y to the change in x. They find the slope of a line using the slope formula, and examine the characteristics of lines with positive, zero, negative, or non-defined slope.
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.
Cool Math
Coolmath: Perpendicular Lines
This CoolMath Resource will help students determine if lines are perpendicular by finding the slope, using the point-slope formula, and graphing.
Texas A&M University
Wtamu Virtual Math Lab: Beginning Algebra: Slope
A tutorial on slope with many step-by-step examples. The tutorial clarifies what slope is, how to find slope between two points on a graph, and how slopes of parallel and perpendicular lines are related.
Varsity Tutors
Varsity Tutors: Hotmath: Slope, Parallel & Perpendicular Lines & Transversals
Twenty-five problems cover the topics of slope, parallel lines, perpendicular lines, and transversals in different settings. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the...
Khan Academy
Khan Academy: Slope From Two Points
Find the slope of the line that goes through the two points that are given to you. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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.
Khan Academy
Khan Academy: Algebra I: Slope Intercept From Two Points
Practice finding the equation of a line passing through two points. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
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: 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.
Mathematics Archives
Math Archives: Visual Calculus: Tangent Lines to Polar Graphs
This site give the formula for finding the slope of the tangent line to a polar graph. The page offers step by step explanations and worked examples.
CK-12 Foundation
Ck 12: Geometry: Lines in the Coordinate Plane Study Guide
This study guide on lines in a coordinate plane covers key terms, what different line slopes look like, postulates about parallel and perpendicular lines, the slope-intercept equation, how to graph parallel and perpendicular lines, and...
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.
Washington State University
Washington State University: Slope Intercept, Point Slope Forms
Washington State University provides a lesson on finding the slope of an equation and putting the equation into the desired form. The site also contains informatinon concerning parallel and perpendicular lines.
Interactive Mathematics
Interactive Mathematics: Graphs of Linear Functions
A brief overview of three methods used to graph lines is presented through examples. Slope-intercept, point-slope, and intercept form are demonstrated step-by-step along with a review of the formula for finding the slope of a line.
Khan Academy
Khan Academy: Slope From Equation
Find the slopes of lines whose equations are given in various forms. For example, find the slope of 2x+3y=5. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Science Education Resource Center at Carleton College
Serc: Mineral Density: Teaching Accuracy, Slope, and Percent Error
Students explore the meaning of density and use their math skills to graph mass/volume data, write an equation for a line, and interpret the slope of the line. Students also find the density of two unknown mineral samples and use those...
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.
Texas A&M University
Wtamu Virtual Math Lab: College Algebra: Parallel and Perpendicular Lines
Given a line, learn how to find the equations for lines that are perpendicular and parallel to it. This tutorial offers several example graphs and problems as well as practice problems for you to work through when you're ready.
Texas Instruments
Texas Instruments: Explore Parallel and Perpendicular Lines
Students can use a graphing calculator to explore graphs of parallel and perpendicular lines. Students will find that parallel lines have the same slope and different y-intercepts and that the slopes of two perpendicular lines are...
Illustrative Mathematics
Illustrative Mathematics: 8.ee Proportional Relationships, Lines, and Equations
In this task, 8th graders are shown the graphs of two lines with the same slope. They are given the equation for the first line and the coordinates of a point on the second and are asked to find the equation for the second line. Aligns...
Texas Instruments
Texas Instruments: Graphic Line Designs
Students can use the x- and y-intercepts to find the equations of lines and create a line design using the slope-intercept form and the limited domain of the segment.