70 POINTS!!!! This is my fourth time asking, PLEASE HElP!!!

What is the domain of the following points?(The following points are on the image below)

A {-7, 3, 7}
B {-7, -3, 3, 7}
C {3, 7}
D {-3, 3, 7}

70 POINTS This is my fourth time asking PLEASE HElP What is the domain of the following pointsThe following points are on the image below A 7 3 7 B 7 3 3 7 C 3 class=