**4.7 Introduction to Coordinate Proof**

Definitions:

Coordinate Proof - Style of proof that uses coordinate geometry and algebra

Definitions:

**Strategies for Positioning Figures in the Coordinate Plan:**

` - Use the origin as a vertex, keeping the figure in Quadrant I

- Center the figure at the origin

- Center a side of the figure at the origin

- Use one or both axes as sides of the figure

**Examples:**