Interpreting Relationships with Line Graphs on a Coordinate Plane

The lesson teaches how to interpret relationships in data by creating line graphs on a coordinate plane. It uses the example of Bobby and Dan's typing errors to demonstrate graphing ordered pairs and analyzing patterns. The lesson explains how line graphs can change direction based on data relationships and emphasizes understanding these changes.

What is the main purpose of using a line graph in this lesson?

• To find the maximum value in a data set

• To compare different data sets

• To interpret relationships in data

• To calculate the average of data points

How are Bobby and Dan's errors represented on the coordinate plane?

• As bar graphs

• As pie charts

• As ordered pairs

• As histograms

What pattern is observed in the line graph created from Bobby and Dan's errors?

• The line moves downward consistently

• The line forms a zigzag pattern

• The line moves upward with a constant increase

• The line remains horizontal

What happens to the line graph when the ordered pair (4, 7) is added?

• The line continues to move upward

• The line becomes a horizontal line

• The line changes direction and moves downward

• The line forms a loop

What common misconception about line graphs is addressed in the lesson?

• Lines can only be straight

• Lines can only move downward

• Lines can only be curved

• Lines can only move upward