WPP#2: Unit A Concept 7: Profit, Revenue, and Cost

WPP#1: Unit A Concept 6: Writing and Solving Linear Models

SV#5: Unit J Concepts 3-4: Solving Three-Variable Systems with Gaussian Elimination

The viewer needs to pay special attention to the four steps of the Gaussian Elimination. Make sure you have plugged in the system correctly into your matrix. Look over your adding/subtracting, make sure it is done correctly so no simple mistakes are made. At the end where you find each value, make sure that you check on your calculator using rref to make sure your answers are correct. Always double check to make sure each step was done correctly and followed the steps to the Gaussian Elimination.