Monday, November 14, 2011

Ch 1 Real World Functions

A function is a relation where an independent variable corresponds with exactly one dependent variable and passes the vertical line test.

A relation is where an independent variable can correspond with more than one dependent variable and does not pass the vertical line test.

In my function graph, each country has their own flag. However, Korea has two flags (one for each sovereign state N. Korea and S. Korea) as shown in my relation graph. The independent variables, also called the domains, are the countries. The dependent variables, also called the range, are the flags.