Answer: Negative 1  The slope of parallel lines is the same.
The attachment shows two such lines, given coordinates labeled. 
Step-by-step explanation:
Find the slope of the line passing through the given points.
  rise/run  
Rise is the difference in y-values  7-(-5)  = 12
Run is the difference between x-values  -5 - 7  = - 12
The Slope is 12/-12   simplify:
slope = -1
 
        
             
        
        
        
Answer:
A. {3,4}
Step-by-step explanation:
In order to find the x values which would make the entire function undefined, you would have to factor the bottom equation. Factoring x^2+7x+12 gives you (x+3)(x+4). If you set each of these equal to 0, you end up with the x values being 3 and 4.
 
        
                    
             
        
        
        
Answer:
1 2/21
Step-by-step explanation:
We start out with:
3/7 + 2/3
In order to add them together, they must have an equal denominator. An easy way to find an equal denominator is the cross method. We divide 7 by 3 and 3 by 7, giving us a denominator of 21:
3/21 + 2/21
But what about the numerators? You do the same thing as before (multiplying by the other's denominator).  Now we have:
9/21 + 14/21
We add both together (the denominator stays the same) and we get 23. 23/21 is correct but not in simplest form. We remove 21 from the numerator (because it is a whole) and finally get:
1 2/21!
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