Paul Dawkins
Paul's Online Notes: Algebra: Lines
Detailed math tutorial features notes and examples that discuss graphing lines and introduces the concept of slope, the standard form of the line, the point-slope form, slope-intercept form, and parallel and perpendicular lines.
Integrated Publishing
Integrated Publishing: Equation of a Straight Line
This math tutorial shows the relationship of a slope to a straight line and how to write equations in point-slope or slope-intercept form.
Khan Academy
Khan Academy: Point Slope Form
Write equations in point-slope form given two pairs of values, and convert the equation into slope-intercept form.
Math Planet
Math Planet: The Slope of a Linear Function
Gain an understanding of how to find the slope of a linear function by viewing an example and a video lesson. [1:44]
Shodor Education Foundation
Shodor Interactivate: Slope Slider
This activity allows the user to explore the relationship between slope and intercept in the Cartesian coordinate system.
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...
Illustrative Mathematics
Illustrative Mathematics: S Id.7 Texting and Grades
Medhavi suspects that there is a relationship between the number of text messages high school students send and their academic achievement. To explore this, she asks a random sample of 52 students at her school how many text messages...
Texas Education Agency
Texas Gateway: Solving Equations and Inequalities
Given verbal and symbolic representations in the form of equations or inequalities, the student will transform and solve the equations or inequalities.
San Diego State University
San Diego State University: Examples of Writing Linear Equations
These examples show how to write linear equations from different types of information. There are even real-world examples dealing with air pressure, sea urchins, and measurement conversions.
CK-12 Foundation
Ck 12: Algebra: Graphing Linear Equations
This comprehensive study guide highlights the main terms and formulas needed to review graphing linear equations. Examples are included.
Math Open Reference
Math Open Reference: Intersection of Two Straight Lines
Learn about the intersection of two straight lines with this helpful reference tool. Provides a detailed definition, examples, and an interactive activity that enhance further explanation. Includes links to related topics.
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.
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