Answer:

Step-by-step explanation:



 
        
                    
             
        
        
        
-5x-10=10   x= -4
Work:
-5x-10=10
     +10  +10
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-5x=20
_______
-5    -5
x=-4
        
                    
             
        
        
        
Answer:
the slope of line j is -1/8, the slope of lines m and n are both 8. 
Explanation step by step:
Suppose j is the slope of line j, m the slope of line m and n the slope of line n. Since: 
1. line j is perpendicular of line m, so j*m= -1 
2. J is perpendicular of line n, so  j*n=-1 
3. m and n and parallel so m=n 
As we want to know the slope of j we clear the equations presented to us in order to find it.
(1) m* n* j = -8, since n=m we have   * j = -8.
* j = -8.
we clear j; 
replacing in the equation n*j = -1 we get
n*(-8/n^2) = -1. Thus n = 8. Since j = -1/n = -1/8.
 
 
        
             
        
        
        
-6 5 -3 is the corrdante did those sir
        
             
        
        
        
I think it's called a coordinate plane 
Sorry if I'm wrong