They are the same , hope this helps :)
Answer:
B.
Step-by-step explanation:
Every answer besides B. has an input that repeats. A function contains inputs that have exactly one output. This means x values cannot have more than one y value.
Answer:
,
, 
Step-by-step explanation:
these are all irrational! hope this helped you :3.
y=-1/2x-4
I could be wrong. Not my strong subject.
-Seth