Co-ordinate Geometry

A system that uses pairs

A system that uses pairs of numbers (coordinates) to represent the position of points with respect to two mutually perpendicular number lines called c

In equations like y = 3x

In equations like y = 3x + 5, if y is expressed in terms of x, then y is the dependent variable (its value depends on x) and x is the independent vari

A pair of numbers written

A pair of numbers written in specific order as (a,b) where a is the first component and b is the second component. The order matters: (3,5) ≠ (5,3). T

The coordinate plane is divided into

The coordinate plane is divided into four quadrants by the x and y axes. First quadrant: (+,+), Second quadrant: (-,+), Third quadrant: (-,-), Fourth

To plot a point (a

To plot a point (a,b): start from origin, move 'a' units along x-axis (right if positive, left if negative), then move 'b' units parallel to y-axis (u