Answer:
(-y,x) The coordinates are switched and the y becomes a negative.
 
        
             
        
        
        
Answer:
6 or 7
Step-by-step explanation:
CHOOSE WISELY
 
        
             
        
        
        
4-9i÷-6i times both sides by 6i
6i(4-9i)÷6i(6i)
24i-54i²÷-36i²
24i-54(-1)÷-36(-1)
54+24i÷36 now reduce 
9+4i÷6
I hope this helps!!
        
             
        
        
        
The first step is to divide by four to both sides