(-3, 1.5)....simply add the x coordinates together, divide them by two, and then do the same for the y coordinates.
        
             
        
        
        
Answer: multiply 631.6 by 0.8 = 505.28
 
        
             
        
        
        
B, the first differences are not the same , that proves it is not linear. The second set of differences are the same this shows it is a quadratic function.
 
        
        
        
Answer:
96
Step-by-step explanation:
U is the midpoint of TV, so mTU is half of mTV or mTV = 2 * mTU, so
mTV = 2 * mTU
11x + 8 = 2 (6x)
11x + 8 = 12x
8 = x
mTV = 11x + 8 = 11(8) + 8 = 88 + 8 = 96