I believe the answer is B: 3 + 7 + (-10).
        
                    
             
        
        
        
Answer:
The answer to your question is (4, 6)
Step-by-step explanation:
Data
E ( 9 , 7 )
F ( - 1, 5)
Formula


Substitution and simplification


       Xm = 4


       Ym = 6
Result
             (4 , 6)   
 
        
             
        
        
        
Hello : 
<span>the general term equation, an, for the arithmetic sequence is : 
An = A1+d(n-1)
A1 : the first term   and : d the common diference
in this exercice : 
A1 = 9
d =(-3)-(1) =(1)-(5) =(5) -(9) = -4
An = 9-4(n-1)
An = -4n +13</span>
        
             
        
        
        
X=26/3 
Wide it's 9/1-1/3
So times the 9/1 by 3
27/3-1/3 
26/3