12 because if u multiply 3*4 it is 12 and 4*3 is 12 so they both have 12 in common.
The height of the barrel is 6 feet.
True, you can even test it out yourself. If the domain (x) is the same then it will be a vertical line. Like if you graphed (1,2) (1,4), (1,6) it will be a vertical line on your graph. I hope this helps!
Answer:
don't understand the full question