Lesson: Graphs of Proportional RelationshipsMathematics
In this lesson, we will learn how to identify the graph of proportional relationships, determine the constant of proportionality (unit rate), and explain the meaning of each point on the graph.
Jennifer decided to make pizzas. The graph shows the number of tomatoes needed for a given number of pizzas.
Determine which of the following statements is true.
From the graph, find the constant of proportionality between the electricity bill and electricity consumption (i.e., the cost of electricity per kilowatt-hour).
Isabella is using origami sheets to make flowers. The following table and graph show the number of flowers she makes and the number of origami sheets she uses. Is this a proportional relationship?
|Number of Flowers||1||2||3||4|
|Number of Sheets||2||4||6||12|