Answer:
Y = 6 and x=6 are perpendicular because they both measure at a 90 degree angle 
 
        
             
        
        
        
The distance between the 2 locations = 7 units 
Step-by-step explanation:
Step 1:
Given,
Location of Hot dogs = (6,4)
Location of Mustard = (6,-3)
We need to find the distance between the two locations
Step 2:
Since the x coordinates of both the location are the same , they lie in the same line.
The first location is 4 units above the x axis and the second location is 3 units below the x axis.
Hence the distance between the 2 locations 4-(-3) = 7 units
Step 3 :
Answer :
The distance between the 2 locations = 7 units 
 
        
             
        
        
        
To convert this equation into slope intercept form simply distribute the number of -2 and put it in
Y = mx + b form 
Y + 4 = -2(X-1) 
Y + 4 = -2x + 2 
Y = -2X + 2 - 4 
Y = -2X - 2 
I believe this is the solution in slope intercept form.
        
             
        
        
        
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You know that the length is 2 more than the width.  If z is the width then y = z(z+2).  I don't see the graph so you will have to scan and look for that y-z relationship.