### Home > CCA2 > Chapter A > Lesson A.3.2 > Problem A-101

Mr. C is such a mean teacher! The next time Mathias gets in trouble, Mr. C has designed a special detention for him. Mathias will have to go out into the hall and stand exactly *unless* he breaks the rules and goes more than halfway, even by a tiny amount. When can Mathias leave? Prove your answer using multiple representations. *A-101 HW eTool* (Desmos).

Remember to fill in the table.

Use the eTool below to view a graph and complete a table showing Mathias' progress towards the door over time.

Click the link at right for the full version of the eTool: *CCA2 A-101 HW eTool*.