Texas Education Agency
Texas Gateway: Coordinate Geometry: Slope
Given coordinate points, the student will use slope formulas to solve problems.
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.
Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Slope of a Line
Find a quick, concise explanation of how to find the slope of a line. Examples are given and clearly explained.
Government of Alberta
Learn Alberta: Slope of a Line Segment
This interactive Java applet allows visualization of line segments and their slopes. The slope and how it is found is given for each line drawn by the user.
National Council of Teachers of Mathematics
The Math Forum: Lines and Slope: Chameleon Graphing
Join Joan the chameleon in an exploration of lines and slope. You'll be drawing lines, calculating slope, using equations and more!
Oswego City School District
Regents Exam Prep Center: Slopes and Equations of Lines
Three resources for teaching slopes and equations of lines: a instructional activity with a formula for finding slope, different equations for lines, and several examples; a fourteen-question quiz covering slope, perpendicular and...
Texas Instruments
Texas Instruments: Snowflake Points
Students will connect the centers of snowflakes with a line preferably by applying the point-slope formula.
Other
Mathway: Algebra Formulas
Comprehensive resource provides algebra formulas for exponents, absolute value, factoring Pythagorean Theorem, linear equations, quadratic formula, distance formula, midpoint formula, and slope of a line through two points.
CK-12 Foundation
Ck 12: Algebra: Slope Intercept Form
[Free Registration/Login may be required to access all resource tools.] Learn to identify the slope and y-intercept of a linear equation.
Other
Git: What Is the Slope Intercept Form of a Line?
Not only does this site show what the slope-intercept form is, but it helps you find the slope and the intercept of a line. There is also additional information on parallel lines, parametric form, and the distance between two points.
Sophia Learning
Sophia: Finding a Formula for the Surface Area of a Cone
This video tutorial demonstrates how to find the formula for the surface area of a cone.
Northeast Parallel Architectures Center, Syracuse University
Npac Reu Program: Point Slope Form
This Northeast Parallel Architectures Center of Syracuse University site contains a brief description of the point-slope form for equations along with the formula.
Khan Academy
Khan Academy: Interpreting Linear Formulas Word Problems
In this exercise, students practice identifying slope of a line. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Texas A&M University
Wtamu Virtual Math Lab: Intermediate Algebra
This site is a tutorial for students in algebra 2 or for those who need a refresher. The site has explanations, definitions, examples, practice problems and practice tests are found covering topics such as linear equations, graphing,...
Texas Instruments
Texas Instruments: Pyramid Height Exploration
This activity center is used to illustrate the difference between the slant height and the actual perpendicular height (of the given square pyramid) by the use of the distance formula.
Oswego City School District
Regents Exam Prep Center: Parallel and Perpendicular Lines
This site displays formulas and examples, pertaining to slope, for parallel and perpendicular lines.
ClassFlow
Class Flow: Definition of Slope
[Free Registration/Login Required] Presents the definition of slope and the formulas for y-intercept form.
Sophia Learning
Sophia: Coordinate Geometry of Rhombi
This lesson will demonstrate how to use slope, midpoint, and distance formulas to determine from the coordinates of the vertices if a quadrilateral is a rhombus in a coordinate plane.
Sophia Learning
Sophia: Coordinate Geometry of Trapezoids: Lesson 3
This lesson will demonstrate how to use slope, midpoint, and distance formulas to determine from the coordinates of the vertices if a quadrilateral is a trapezoid in a coordinate plane. It is 3 of 4 in the series titled "Coordinate...
Sophia Learning
Sophia: Coordinate Geometry of Parallelograms: Lesson 4
This lesson will demonstrate how to use slope, midpoint, and distance formulas to determine from the coordinates of the vertices if a quadrilateral is a parallelogram in a coordinate plane. It is 4 of 6 in the series titled "Coordinate...
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.
Texas Education Agency
Texas Gateway: Coordinate Geometry: Special Segments
The student will derive and use the slope and midpoint formulas to verify geometric relationship that include parallelism and perpendicularity of lines. Then, the student will determine an equation of a line parallel or perpendicular to...
Paul Dawkins
Paul's Online Notes: Algebra Cheat Sheet [Pdf]
An algebra "cheat sheet" to use as a reference when completing algebra homework. Lists basic facts, properties, operations, formulas, and functions, as well as common errors.
ClassFlow
Class Flow: Straight Lines
[Free Registration/Login Required] Students explore straight lines, graphing lines and applying the formula for graphing linear equations.