Lesson 3.7: Analytic Geometry Applications
Key Concepts: Analytic Geometry Applications ⭐
Analytic (Coordinate) Geometry
Analytic geometry uses coordinates and algebra to study geometric figures. Key formulas:
- Distance Formula: d = √[(x₂−x₁)² + (y₂−y₁)²]
- Midpoint Formula: M = ((x₁+x₂)/2, (y₁+y₂)/2)
- Slope Formula: m = (y₂−y₁)/(x₂−x₁)
Applications
- Classify shapes: Use distance to verify side lengths, slope to check parallel/perpendicular sides.
- Prove properties: Show a Quadrilateral is a parallelogram by proving opposite sides have equal slopes.
- Find areas: Use coordinates to calculate areas of triangles and polygons.
- Verify geometric theorems: Place figures on a coordinate Plane and use algebra to confirm relationships.