Math 141 Sections 1,2, and 7.1

Math 141 Sections 1,2, and 7.1

1. Section 1.2 Visualizing Relationship in Data

   • A relation is any set of ordered pairs.
     • Domain of a relation is a set of all inputs.
       • Input- independent variable.
         • Independent Variable- a variable who's variation does not depend on another.
     • Range is the set of all outputs.
       • Output- dependent variable.
         • Dependent Variable- a variable who's variation does depend on another.
   • Example
     • Inputs: 12,18,21,24,30
       • Outputs: 76,80,82,85,87,92
   • Section 1.4 Definition of Function
     • A function is a relation where each input give exactly one output.
     • Example