Page 1: Fundamentals of Coordinate Geometry
This page introduces core concepts of coordinate geometry, focusing on gradients and distances between points. The content progresses from basic GCSE concepts to more advanced applications.
Definition: Gradient is calculated using the formula y2−y1/x2−x1 where x1,y1 and x2,y2 are coordinates of two points on a line.
Example: Finding the gradient between points A2,1 and B4,7 demonstrates practical application of the gradient formula.
Highlight: Parallel lines have identical gradients M1=M2, while perpendicular lines have gradients that are negative reciprocals M1M2=−1.
Vocabulary: Modulus in coordinate geometry refers to the absolute value, ensuring only positive distances are considered.