Which of the following sets of ordered pairs represents a function? A.
{(9,14), (9,4), (0,0), (11,16)}
B.
{(0,-9), (14,-9), (0,9), (-9,14)}
C.
{(9,-9), (12,-9), (0,-9), (-9,12)}
D.
{(-9,9), (-9,12), (-9,0), (12,-9)}

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  

c

step-by-step explanation:

c

chicken chicken chicken

step-by-step explanation: