Answer:
A,C,D
Step-by-step explanation:
a linear equation is in the form of y=mx+b
in this case slope m is unidentified and there is no y intercept, and x=3 vertical line.
A) the equation is x=3 ( right answer)
x=3 is not a function in the normal sense
however in this case we might say that the relation ship is 3
so the Domain and the range equal to 3
