What are the lines in the picture below called?

Iwill make brain if you me correctly fill this out needs due today pls and send it back to me (click the link and you will get it)

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.

A(1,1) b(-3,0) c(-4,-1) d(3,-2) drag it to correct position