Answer:
-1/2
Step-by-step explanation:
Answer:
I believe is C because there is no other answer to this problem
Step-by-step explanation:
Answer:
Yes.
Step-by-step explanation:
Friend's answer is correct.
Answer:
case A. 
case B. 
case E. 
Step-by-step explanation:
we have

we know that

<u>Verify each case</u>
case A) 

therefore
is equivalent to 
case B) 
so
is equivalent to 
case C) 

therefore
is not equivalent to 
case D) 
so
is not equivalent to 
case E) 

therefore
is equivalent to 
case F) 
so
is not equivalent to 
Two: the horizontal axis and the vertical axis.