Explain why this mapping is or is not a function O A. This is a function because every input maps to only one output.
OB. This is a function because every output maps to only one input
C. This is not a function because more than one input maps to an output.
D. This is not a function because more than one output maps to an input

B is the correct option

a4 - 3a2 - 1

step-by-step explanation:

step   1   :

equation at the end of step   1   :

  ((a4) -   3a2) -   1

step   2   :

trying to factor by splitting the middle term

2.1     factoring   a4-3a2-1  

the first term is,   a4   its coefficient is   1 .

the middle term is,   -3a2   its coefficient is   -3 .

the last term, "the constant", is   -1  

step-by-step explanation:

divide, then simplify your answer.

1. make -15.66 ÷   5.8 a fraction. then divide.

2. simplify.  

3. final answer.