CK-12 Foundation
Ck 12: Algebra: Inequalities With Addition and Subtraction
[Free Registration/Login may be required to access all resource tools.] Solve inequalities using addition or subtraction
CK-12 Foundation
Ck 12: Algebra: Systems Using Substitution
[Free Registration/Login may be required to access all resource tools.] This lesson covers solving a system of linear equations using substitution.
CK-12 Foundation
Ck 12: Algebra: Testing Solutions for Linear Inequalities
[Free Registration/Login may be required to access all resource tools.] Write and solve linear inequalities.
Paul Dawkins
Paul's Online Notes: Algebra: Solving Equations and Inequalities
Students learn how to solve equations and inequalities. Topics examined are linear equations, quadratic equations, linear inequalities, and absolute value inequalities. The class notes are available in pdf format.
Varsity Tutors
Varsity Tutors: Hotmath: Graphing Calculator Practice Problems
Practice using your graphing calculator for linear equation and linear inequality problems. If you get stumped or if you would like to check your work, then select the View Solution button, which is located directly under each problem.
CK-12 Foundation
Ck 12: Algebra: Linear Systems With Addition or Subtraction
[Free Registration/Login may be required to access all resource tools.] This lesson covers solving a system by adding the two equations together to eliminate a variable.
CK-12 Foundation
Ck 12: Algebra: Solving Systems by Multiplying Both Equations
[Free Registration/Login may be required to access all resource tools.] This lesson covers solving systems by multiplying both equations by a constant to eliminate a variable.
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.
CK-12 Foundation
Ck 12: Algebra: Linear Inequalities in Two Variables
[Free Registration/Login may be required to access all resource tools.] Graph linear inequalities to find solutions.
CK-12 Foundation
Ck 12: Algebra: Testing Solutions for Linear Inequalities
[Free Registration/Login may be required to access all resource tools.] This lesson covers testing ordered pairs to see if they are solutions to a linear inequality in two variables.
CK-12 Foundation
Ck 12: Algebra: Systems of Linear Equations in Three Variables
[Free Registration/Login may be required to access all resource tools.] This lesson covers solving a system of equations in three variables (x, y, and z).
CK-12 Foundation
Ck 12: Number Lines: Freezing Cold Comparison
[Free Registration/Login Required] Students will explore number lines by using themometers as well as graph inequalities. Click challenge me to answer practice questions and click learn more to watch a video.
CK-12 Foundation
Ck 12: Checking Solutions to Inequalities
[Free Registration/Login Required] Students will determine if the given number is the solution to the inequality. Click challenge me to answer a pactice question and click learn more to watch a video.
CK-12 Foundation
Ck 12: Linear Equations: Temperature Transitions
[Free Registration/Login Required] Students learn how to solve equations with variables using the given graph. Click challenge me to answer practice questions and click learn more to watch a video.
CK-12 Foundation
Ck 12: Linear Equations: Paying for a Slice of Pizza
[Free Registration/Login Required] Students practice solving linear equations with variables using fractions. Click challenge me to answer a practice question and click learn more to watch a video.
CK-12 Foundation
Ck 12: Two Step Equations With Addition and Multiplication
[Free Registration/Login Required] Students use the inverse of addition and multiplication to solve two-step equations. Click challenge me to answer a practice question and click learn more to watch a video.
CK-12 Foundation
Ck 12: Algebra: Midpoint Formula
[Free Registration/Login may be required to access all resource tools.] Learn how to use the midpoint formula.
CK-12 Foundation
Ck 12: Algebra: Equations of Parallel Lines
[Free Registration/Login may be required to access all resource tools.] Learn how to write equations of parallel lines.
CK-12 Foundation
Ck 12: Algebra: Horizontal and Vertical Line Graphs
[Free Registration/Login may be required to access all resource tools.] Learn how to graph horizontal and vertical linear equations.
CK-12 Foundation
Ck 12: Algebra: Inequalities on a Number Line
[Free Registration/Login may be required to access all resource tools.] Use a number line to graph inequalities
CK-12 Foundation
Ck 12: Algebra: Inequalities With Addition and Subtraction
[Free Registration/Login may be required to access all resource tools.] Learn how to solve one-step inequalities using addition and subtraction.
CK-12 Foundation
Ck 12: Algebra: Inequality Expressions
[Free Registration/Login may be required to access all resource tools.] Learn how to express inequalities using various notation and by graphing.
Sophia Learning
Sophia: Graphing Using Intercepts Tutorial
Follow step by step instruction to solve for x and y-intercepts, plot points, and graph the linear function.
Purple Math
Purplemath: Solving Inequalities: An Overview
A discussion on how to solve linear and nonlinear inequalities is presented. Both the Test Method and the Factor Method of checking positive/negative intervals are included as part of the discussion.