1. Click to reveal points A. P, R;[br]2. Click for the plane containing points A, P and R;[br]3. Click to see the vectors OA, AP, PR and OR (r);[br]4. Move the sliders lambda and mew to see different points on the plane P' and R';[br]5. Click to see the vector equation of the plane and general points on the plane R'(x, y, z).