# 5.2.1 Coordinates, PT3 Focus Practice

   
     
      
5.2.1 Coordinates, PT3 Focus Practice
      

   Question 1
:
      
In diagram below, Q is the midpoint of the straight line PR.
      

 
      
      
The value of is
      
      

    Solution
:
         $\begin{array}{l}\frac{2+m}{2}=5\\ 2+m=10\\ \text{}m=8\end{array}$       
  

        
 
 
    
    
      
Question 2:
      
In diagram below, P and Q are points on a Cartesian plane.
      

      

      
           
If M is the midpoint of PQ, then the coordinates of M are
      

   
Solution:
                  
   

   
 
   
     
      
Question 3:
      
Find the distance between (–4, 6) and (20, –1).
      
      

    Solution
: