Finding Unit Rates by Reading Graphs

This lesson teaches how to find unit rates by reading graphs. It begins with an introduction to unit rates using a milk cost example, explaining the concept of constant proportionality. The lesson then explores how graphs provide clues about proportional relationships. A detailed example using a snack pack graph demonstrates how to identify unit rates by analyzing the x and y axes. The lesson concludes with verifying unit rates through multiplication, ensuring that all points on the graph align with the calculated unit rate.

What is a unit rate and how can it be determined from a graph?

Describe how the example of milk pricing illustrates the concept of unit rates.

What does the term 'constant proportionality' refer to in the context of unit rates?

Explain the significance of the y-axis in determining the unit rate from a graph.

How can you verify that a calculated unit rate is correct using other quantities?