Answer:
<h3>x = -7</h3>
Step-by-step explanation:
2x + 3 = x – 4
2x - x = -3 - 4
x = -7
 
        
             
        
        
        
Step-by-step explanation:
I didn't write language hope u get it
 
        
             
        
        
        
Answer:
60 degrees
Step-by-step explanation:
The angles all have to add up to 180, so you can do 

 
        
                    
             
        
        
        
Answer:
Pretty sure its 7 and 8
Step-by-step explanation:
test it out
 
        
                    
             
        
        
        
The slope of the line is the velocity, or rate of change, of y with respect to x.  In other terms, the slope tells you how much y will change for every change in x by one unit.  For example if the slope, which is velocity, is 2.  y will increase by two units every time x increases by one unit.  Your graph is not pictured nor explained, so I cannot give you the specific context beyond the principle that the slope of a line is a constant velocity or rate of change.