Dr. Fraser will begins this new section on Functions with a lecture on Relations. He covers the definition of relations and cover three methods of representation: a table, a set of ordered pairs, or as a graph. Next he covers domain and range as well as the inverse of a relation. Four comprehensive video examples round out this lecture.
A relation is a
set of ordered pairs. It can be represented as a table, a graph, or
The domain of a
relation is the set of values given by the first terms of the
ordered pairs. The range is the set of values given the second
The inverse of a
relation R is the relation obtained by interchanging the coordinates
in the ordered pairs of R. The domain of the inverse of R is the
range of R and the range of the inverse of R is the domain of R.
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.