Answer: B. (2,1)
Step-by-step explanation:
its not c because if you look at R you see that it is going 4,3 not 3,4 because when you doing ratios on a number line it goes x-axis then y-axis next not y-axis then the x-axis. 
It's not D because if you look at Q you see that it is going 3,5 not 5,3 because when you doing ratios on a number line it goes x-axis then y-axis next not y-axis then x-axis.
That's the same thing for A so your answer is b.
 
        
                    
             
        
        
        
Standard formula for arithmetic sequence: 
an = a0 + d(n-1) 
if we use the two terms given, setting a12 as starting term and a45 as the end term an. 
170 = 38 + 33d 
170 - 38 = 33d 
132 = 33d 
132/33 = d 
This is the common difference, use it to find the first term. 
38 = a0 + (132/33)(12-1) 
38 = a0 + (132/33)(11)
38 = a0 + 132/3 
38 - 132/3 = a0 
38 - 44 = a0 
-6 = a0 
The starting term is -6 
        
             
        
        
        
Answer:
C is correct
Step-by-step explanation:
 
        
             
        
        
        
Answer:
No, 2/3 sqrt(5) k^(11/2)
Step-by-step explanation:
 
        
                    
             
        
        
        
Y=3.5x
Pts are (1,3.5),(2,7),(3,10.5)