Answer:
The equation is not a function.
Step-by-step explanation:
We are given that 


Function: It is mapping between the values of two sets A and B.
Each element of A has unique value in set B.
By definition of  function 
In given function 
y has no unique value for each value of x.
Substitute x=0

Hence, it is not a function.
 
        
             
        
        
        
Answer:
B
Step-by-step explanation:
A, C, and D can be a possibility but they are not exactly at the middle. B is the only one that shows a slightly triangular shape, which you can see the middle that shows the best measure of the center.
Hope this helped!
 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
<u>Solving in steps</u>
- 7^-1/7^2 =
- 7^-1 × 7^-2 =
- 7^(-1 - 2) =
- 7^-3
 
        
             
        
        
        
Answer:
-2
Step-by-step explanation:
i got it right