When it states "reflection" it really means just flip the point over the line. Since they want you to reflect the point over the x- axis you need to flip the point onto the other side of the horizontal line. So count down spaces until you get to the x- axis. You went down 3 spaces correct? Now count from that line 3 spaces down and that is your new point. Your answer would be (2,-3). Its kind of like a mirror. I hope this helps love! :)
The relative frequency of an event is defined as the number of times that the event occurs during experimental trials, divided by the total number of trials conducted.