Answer:
- geometric sequence with initial value 20 and common ratio 1/2
- average rate of change on [1, 3] = -7.5
Step-by-step explanation:
(a) The given points have sequential values of x and values of y that are each 1/2 the value before. The common ratio tells us the sequence is a geometric sequence.
(b) The first given point is (2, 10), so extrapolating backward, we determine the previous point to be ...
... (2-1, 10/(1/2)) = (1, 20)
Thus, we have enough information to determine the average slope between n=1 and n=3.
... (difference in y)/(difference in n) = (5 -20)/(3 -1) = -15/2 = -7.5
 
        
             
        
        
        
Answer:
A and B: Isosceles (having two sides of equal length)
C: Equilateral (all sides are equal)
 
        
                    
             
        
        
        
Answer: 12
Step-by-step explanation:
18−2(10+8)/6
=18−(2)(18)/6
=18−36/6
=18−6
=12
 
        
             
        
        
        
Answer:
Step-by-step explanation:
idk
 
        
             
        
        
        
2, 0 0 8 and then 4, 5 5 6 8