Working in the Cartesian Plane

• If you want to find the midpoint of 2 numbers, add the numbers together and divide it by 2
• To find the midpoint between 2 coordinates you :

  Add the x coordinates and divide by 2

  Add the y coordinates and divide by 2
• Example:

  (-1,2) and (3,2) - Midpoint:

  x= -1+3 ÷2 = 1

  y= 2+2÷2= 2

  Final answer: (1,2)
• When lines have a negative gradient they will slope from left to right or down
• When lines have a positive gradient there lines go up- the steeper the line the higher the gradient
• Gradient= rise÷run / change in x÷change in y

  Gradient= 6/3

  Gradient= -2

  It needs to be negative as the line will slope down from left to right