- C1-coordgeom
- Equations of Parallel and Perpendicular Lines
- Pyth Thm: Coords
- Painter on a ladder
- Slope Intercept Form of Equation of Straight Line - Quiz
- Applet 2 - Investigation Slope
- Explore: Systems of Linear Equations
- CCGPS CA 6.2.2 Example 3
- Solving Systems of Equations
- Circle with Center and Radius
- Circels theorem
- Right Triangle Diameter & Vertex Point On Circle
- circle with chord and perpendicular bisector
- circle theorem 1a
- Circle Theorem 7 - Tangents from a Point to a Circle II
- Investigating the discriminant
- Points of intersection Circle and a Straight Line
- Fix point of a two parameter array of circles
- C1. Intersection of quadratic curve and circle
- Chords, Circles, and Equations
- Role of a, b and r in the equation (x-a)^2+(y-b)^2=r^2
