Just plug in 1 and 2 for x and it will give you y then write it as (x,y) cordinates
        
                    
             
        
        
        
Stitches? It’s the only one I know lol
        
                    
             
        
        
        
Answer:
 18
Step-by-step explanation:
10 +3 =13 +5 =18 
so that is how you get the answer 18 it's simple really 
 
        
             
        
        
        
the first/upper one
the other point cloud is too compact to leave a clear clue about any slope 
 
        
             
        
        
        
3,4,5,6,7.....
re-arrange : 76,534...this would be the largest 5 digit even number with the hundreds place having a 5 in it