**Student Instructions**

On each slide, complete the problems using the , or tools to show ALL of your work! Use the tool to record your justification. This is a test, so I need to see and HEAR all of your calculations/explanations. Each problem is worth 3 points your final score will be posted on the first slide upon approval. When you have completed the activity, click to submit. If you need more time to study and wish to return to your activity at a later time, click to save and return.

On slide 7, BOTH Bob and Suzy used the process of substitution correctly. The difference is Bob made his initial substitution for the x variable, where as Suzy made her initial substitution for the y variable.