The radius of a circle should be placed in the Z section making the answer A.
One way to determine the slope of a line is from two points on a line.
We can use the ones already indicated on the graph, (0,4) and (3,5).
The slope is change in y divided by change in x,

Answer: 1/3
The answer is D because when you insert it into a calculator it gives you D. Yet, if you do it manually you still get the same number .
The transformation is a reflection