If the endpoints of AB have the coordinates A(9,8) and B(-1,-2), what us the midpoint of AB?

• choixongdong: midpoint of AB:
  x = (9 - 1)/ 2 = 4
  y = (8 - 2)/2 = 3
  
  midpoint of AB = (4 , 3)
• gameninga324: For this we must use the Midpoint Formula.
  
  [tex]m= (\frac{y_2-y_1}{2}, \frac{x_2-x_1}{2})[/tex]
  
  We'll find the y coordinate first.
  
  [tex]y= \frac{y_2-y_1}{2} \\ y= \frac{8-(-2)}{2} \\ y= \frac{10}{2} [/tex]
  y=5
  
  Now we'll do the same for x.
  
  [tex]x= \frac{x_2-x_1}{2} \\ x= \frac{9-(-1)}{2} \\ x= \frac{10}{2} [/tex]
  x=5
  
  Your final answer is m=(5, 5)