# Sliding Ladder Model w/ 3 Snapshots using TI-84C

In this tutorial students will learn how to model a related rates problem using parametric equations and a graphing calculator. The model will calculated the instantaneous velocity at 3 different snapshots or moments in time. In this problem the model will calculate the rate at which the top of a ladder is sliding down a wall as the bottom of the ladder is moving away from the wall.

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