Linear graphs & Coordinate Geometry

Linear graphs & Coordinate Geometry

1. Chapter 9

   • 9.1 Line Of Segment
     • The coordinates of Point A is (x , y ) and the coordinates of point B is (x ,y )
       • To find the length of line segment of point AB, we use the following formula:
   • 9.2 Gradient of Linear Graphs
     • The functions of graphs which are straight lines are of the form, y=mx+c, where m and c are constants.
       • 4 Basic shapes of lines
   • 9.3 Equation of a straight line
     • y = mx + c. Constant m stands for the steepness of the gradient. Constant c stands for the y- intercept, where the line cuts the y- axis

2. Chapter 12

   • 12.1 Cartesian Coordinates
     • A coordinate is also known as ordered pairs E.g (x,y), (2,-8)
       • The vertical number line is called the y-axis. The numbers are written on the left of the number line. The horizontal number line is called x-axis and the numbers are written under its number line.