Write out the slope formula:
m = (change in y) / (change in x)
Here, 
m = n-(-9) / (-6-(-2)) = (n+9 / (-4)
Now set this slope equal to -1 and solve the resulting equation for n:
(n+9) / (-4) = - 1, or   (n+9) / 4 = 1, or n+9 = 4.  Then n = -5.
 
        
             
        
        
        
coordinates of point b is (-4 , 5)
 
        
             
        
        
        
Yes, it does - function a relation or expression involving one or several variables
        
             
        
        
        
Answer:
22
Step-by-step explanation:
n² - m = 
-5² - 3 =
25 - 3 = 22
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