Which of the following is the inverse relation of the set? {(3, 1), (4, 2), (5, 3), (6,4)}

A) {(2, 4), (3, 3), (5, 4), (6, 1)}
B) {(1, 3), (2, 4), (3,5), (4, 6)}
C) {(3, 1), (4,2), (5,3), (6,4)}
D) {(2, 1), (4,3), (5,3), (6,4)}

question: how many people can she serve?

answer: she can serve 16.66666667 people. so she can only give 16 people a complete serving.

question: does she have enough ice cream for her guests?

answer: no. explanation: she only has enough for 16 people to have a full serving. however, she can give a 17th person a partial serving.

this excerpt is taken from the book “we shall not be moved : the women’s factory strike of 1909 “ and is written by joan dash. it is the story of the great strike when almost 30thousand women working in factories in america formed a union to fight unsafe working conditions, long working hours and miserable wages.

question: which best states the author’s purpose for including this information in the text?

answer: to challenge the reader’s ideas about a historical event