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: Determining the Equation of a Line
[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,...
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.
Ministry of Education and Universities of the Region of Murcia (Spain)
Ministerio De Educacion Y Ciencia: Funciones De Primer Grado
In Spanish. Interactive activities dealing with graphing equations in the form of y=mx+b.
University of Regina (Canada)
University of Regina: Math Central: Introduction to Slope for Middle Years Mathematics
This collection of five middle school math lessons covers the topic of plane geometry, specifically the concept of slope. The first lesson introduces students to plotting points on a Cartesian grid using a Geoboard. Lesson two moves them...
Illustrative Mathematics
Illustrative Mathematics: A rei.d.10: Collinear Points
This task leads students through a series of problems which illustrate a crucial interplay between algebra and geometry. Aligns with A-REI.D.10.
Wyzant
Wyzant: Determining the Equation of a Line From a Graph
The resource consists of practice problems that examine how to determine the equation of a line from a graph. Worksheet and answer sheets are included.
Ducksters
Ducksters: Kids Math: Linear Equations: Slope Forms
Explore the slope-intercept and point-slope forms of linear equations and how to graph them on this webpage.
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 Education Agency
Texas Gateway: Determining Intercepts and Zeros of Linear Functions
Given algebraic, tabular, or graphical representations of linear functions, the student will determine the intercepts of the graphs and the zeros of the function.
Google
Google for Education: Linear Association
This student activity allows for practice in graphing data in a spreadsheet and relate the "slope" of their graphs to the association between two sets of data.
Concord Consortium
Concord Consortium: Linear Equations: Y=mx+b
Graph lines using a slope and a y-intercept. Identify the slope and y-intercept from the equation of a line in slope-intercept form.
Khan Academy
Khan Academy: Algebra I: Point Slope Form
Write equations in point-slope form given two pairs of values, and convert the equation into slope-intercept form. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Texas Instruments
Texas Instruments: Parallel and Perpendicular Lines on Ti Smartview
This is an introductory lesson on graphing parallel and perpendicular lines. The students will have a good visual on how these lines relate to each other. This also illustrates how to determine equations in slope-intercept form of a line...
Math Open Reference
Math Open Reference: Equations of a Line (Slope and Intercept Form)
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.
CK-12 Foundation
Ck 12: Algebra: Intercepts by Substitution
[Free Registration/Login may be required to access all resource tools.] Learn how to graph linear equations by finding intercepts using substitution.
CK-12 Foundation
Ck 12: Algebra: Intercepts and the Cover Up Method
[Free Registration/Login may be required to access all resource tools.] Find the intercepts of a line and use them to graph linear functions.
CK-12 Foundation
Ck 12: Algebra: Intercepts by Substitution
[Free Registration/Login may be required to access all resource tools.] Learn how to graph linear equations by finding intercepts using substitution.
Khan Academy
Khan Academy: Slope From Two Points
In this exercise, students practice determining the linear equation and slope from two points on a line graph. Students receive immediate feedback and have the opportunity to watch a video, get hints, or try questions repeatedly.
CK-12 Foundation
Ck 12: Algebra: Linear Inequalities in Two Variables
[Free Registration/Login may be required to access all resource tools.] Solve and graph linear inequalities in two variables on the coordinate plane.
University of South Florida
Fcat: Exploring Linear Equations: Teacher Notes
This lesson plan guides students through the use of a graphing calculator to explore the slope and y-intercept of a line.
Curated OER
Linear Functions
This site contains a short tutorial on point-slope, slope-intercept, and general form of linear equations. The site has an interactive graph of lines showing how the graph of a line changes when values of the linear equation change.
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.
Other
Linear Functions, Slope and Regressions
Find activities here for linear functions, slopes and regression lines. Use them for classroom work or individual assignments.