Math 115 TOP Exam Questions and CORRECT Answers

Definition of a Set. We call a "well-defined" collection of objects a set. Examples, collection of all students taking M115, or collection of all parking spaces. Usually represented by upper case letters A, B, C. Definition of Elements. The objects of a set are called the elements, or members, of a set. Usually represented by lowercase letters a, b, c. example {a, b, c} Example of roster notation. B={a, b, c, . . . , z} It lists every single element of a set. Example of a set-builder notation. B = {x|x is a letter of the English alphabet} This is read as "B is the set of elements x such that x is a letter of the English alphabet." A = {x|x is a day in August 2011 such that the temperature recorded at the Missoula International Airport was approximately 73◦F}