module 1 lesson 5

Module 1 Lesson 5.notebook

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Module 1, Lesson 5 09/11/14Identifying Proportional and Non-Proportional Relationships in Graphs

Homework:Lesson 5 Problem Set#1 and 3

Do Now

Exit Ticket for Lesson 4

Module 1 Lesson 5.notebook

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Lesson 4 Exit Ticket Review

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Fill in the table below so that y is proportional to x.

Module 1 Lesson 5.notebook

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Plot ordered pairs for all the values of the Opening Exercise.

Module 1 Lesson 5.notebook

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Compare Example 1 and Example 3

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Closing Questions1. How are proportional quantities represented in a graph? They are represented in a graph where the points lie on a straight

line that passes through the origin.

2. What is a common mistake a student might make when deciding whether a graph of two quantities shows that they are proportional to each other? Both graphs can have points that lie on a straight line, but the graph

of the quantities that are proportional to each other also goes through the origin. In addition the graph could go through the origin, but the points do not lie on a straight line.

Module 1 Lesson 5.notebook

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Module 1 Lesson 5.notebook

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Important Note:

Characteristics of graphs of proportional relationships:

1. Points lie in a straight line.2. Line goes through the origin.