Unit 3: Linear Applications, Sequences, Piecewise Systems

Please watch the attached videos under each concept in the following order.

Systems of equations

Graphing

1. Checking if a point is a solution

2. Solving a system by graphing

Substitution

1. Solving a system by substitution

2. Solving a system of equations by substitution 2nd example

Elimination

1. Elimination Method 1

2. Elimination with multiplication

3. Solving Systems word problem Elimination with Multiplication

Systems of inequalities

1. Checking a solution to an inequality

2. Graphing systems of inequalities

3. Systems of Inequalities Word Problem