Education Technology

Function or Relation?

Activity Overview

In this activity, students will use graphs and lists to determine if sets of data represent functions or relations.

Key Steps

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    Students are given a data set and will create a scatter plot. After reading the definitions of relation and function, students are asked which term they think represents the voter data.

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    Students will apply the vertical line test to determine if the relation is a function. They will draw a vertical line on the plot and use the arrow keys to see where the line passes through more than one point.