# Systems of equations and inequalities. The student applies mathematical processes to formulate systems of equations and inequalities, use a variety of methods to solve, and analyze reasonableness of solutions.

### Popular Tutorials in Systems of equations and inequalities. The student applies mathematical processes to formulate systems of equations and inequalities, use a variety of methods to solve, and analyze reasonableness of solutions.

#### How Do You Solve a Word Problem Using a System of Inequalities?

Math can sneak up in all sorts of places, so it's important to be prepared! Follow this tutorial to see a real world math problem involving a system of inequalities!

#### How Do You Solve a System of Equations Using Substitution if One Equation is a Quadratic?

Substitution is a great way to solve a system of equations! In this tutorial, you'll see how the substitution method is used to solve a system of equations involving both a linear and a quadratic equation!

#### How Do You Solve a System of Equations by Graphing?

There are many different ways to solve a system of linear equations. In this tutorial, you'll see how to solve a system of linear equations by graphing both lines and finding their intersection. Take a look!

#### How Do You Solve a System of Inequalities by Graphing?

There are many different ways to solve a system of inequalities. In this tutorial, you'll see how to solve such a system by graphing both inequalities and finding their intersection. Check it out!

#### How Do You Solve a System of Equations in Three Variables Using Elimination?

The elimination method can be extended from solving a system of equations with two variables to solving a system with three variables. Watch the tutorial to find out how!

#### How Do You Solve an Optimization Word Problem?

Optimization problems are used everyday to help businesses figure out how much of their products they need to sell in order to make a profit. Follow along with this tutorial to see a real world problem involving optimization!

#### What is Linear Programming?

If you want to solve an optimization problem, you can use linear programming to help! This tutorial introduces linear programming and the different pieces of this method.

#### What is a Matrix?

Matrices can help solve all sorts of problems! This tutorial explains what a matrix is and how to find the dimensions of a matrix.

#### What is a Coefficient Matrix?

You can solve a system of a equations using matrices! In order to do that, you need to create a coefficient matrix. This tutorial introduces this type of matrix and shows you how to make one!