Here are some points. What are the coordinates of the points after they are reflected over the x-axis?
HHH14
A
12
10-
B6
2 4
6 8 10 12 14 16 18 20
-20-18-16-14-12-10-8-6-4-2
2
2 C
4
-6
A'
B
C'
D'