Please help me out, thank you

A. Not a function

B. function

C. function

D. not a function

Step-by-step explanation:

A is not a  function because it has more than one of the same input ( x value)

B is a function because it does NOT have more than one of the same input (x value)

C is a function because it does NOT have more than one of the same input (x value)

D is not a  function because it has more than one of the same input ( x value)

Hope this helps.

5 x 14?

im new, sorry if this is wrong.

step-by-step explanation:

if you was gonna solve for a, a is a   < -12