The sides must be long enough to make a triangle. (If the sides are not long enough, they won't meet, so cannot form a triangle.)
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If your version of the triangle inequality includes the "or equal to" case, then the segments must be long enough to meet, even though the result may look like a line segment.
 
        
             
        
        
        
Answer:
True
Step-by-step explanation:
The communative property states that the order in addition and multiplication dosen't matter.
 
        
                    
             
        
        
        
Answer:
Rational.
Step-by-step explanation:

 
        
             
        
        
        
Answer:
 or
 or 
Step-by-step explanation:
To find slope we use the slope formula 

Two points on the line we can classify are (3,4) and (4,8)
 
        
             
        
        
        
Answer:
   (1, 2)
Step-by-step explanation:
Subtract the second equation from the first:
   (y) -(y) = (6x -4) -(-x +3)
   0 = 7x -7 . . . . .  simplify
   0 = x - 1 . . . . . . divide by 7
   1 = x . . . . . . . . . add 1
   y = -1 +3 = 2 . . . substitute into the second equation
The solution is (x, y) = (1, 2).