It does show a function because it passes the vertical line test (no two points have the same x value).
It is 4.5 away from the Y axis and 2.25 away from the X axis.
The answer is B B B B B B B B B B
It says that you need to divide 2 exponents with the same base, you keep the base and subtract the powers, its kind of like reducing fractions! :)
