Author:
Kate Sidlo

By the end of this tutorial you will be able to identify independent and dependent variables from a graph, equation, ordered pair, and word problem.

Tutorial

1) Take notes from podcast

2) Add vocabulary definitions to your vocabulary

**FUNCTION:** A relationship where every input has one and only one output

**INDEPENDENT: **A variable that is changed by choice. X-Variable.

**INPUT:** A term or number that is plugged into a relationship; the x-variable in an ordered pair

**RELATIONSHIP:** A comparison of terms, variables, and/or numbers (typically an equation or inequality)

**OUTPUT:** A term or number that is the answer or solution to a relationship; the y-variable in an ordered pair

**VERTICAL LINE TEST:** A test that uses vertical lines to check if a graph is a function. Each vertical line can intersect a graph only once for a graph to be a function.