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.