Hi mike, I don’t know how to answer questions like these; would you tell me the right way to do so?

In the xy-coordinate plane, point P is the reflection of the point with coordinates (3,1) across the line y=x. Point T is the reflection of point P across the y axis. What are the coordinates of T?

A) (-3,1)
B) (-1,-3)
C) (-1,3)
D) (1,-3)
E) (3,-1)

In the xy coordinate plane, a circle with radius 2 has its center at the point (3,5). When the circle is reflected across the x- axis its image is another circle. What is the distance between the centers of the two circle?

A) 4
B) 6
C) 8
D) 10
E) 14