I need help which one is the answer

IT's B

Step-by-step explanation:

All inputs(x) each have one output(y).

D. The answer is no, because one x value corresponds to two y-values.  

Step-by-step explanation:

Let's put the chart into ordered pairs:

(x, y)

(2,1)

(3,4)

(3,3)

(4,2)

(5,5)

In bold, we see that there are two y-values at x=3. This means that this relation fails the vertical line test (two points on the same vertical line). This is not a function.

a reflection across the x axis and a 90 degree rotation left and right.