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In this lesson, we will learn how to graph an integer on a number line, write its opposite, and derive the relationship between that integer and its opposite.
Q1:
Answer the questions about the points on the number line.
What distance away from zero is the selected number?
If you start at the selected number and move toward zero, do the numbers get smaller or larger?
If you start at the number that is opposite the selected number and move toward zero, do the numbers get smaller or larger?
Q2:
The integer − 7 is the opposite of 7 because they are the same distance from 0 on a number line, but in opposite directions. Jennifer wrote that the opposite of − 7 is − ( − 7 ) , what number is this?
Q3:
The city of Brawley in California has an elevation of 111.9 feet below sea level. Write a number that represents the elevation of the city.
If we plot the opposite of this number on a number line, between which two integers will it lie?
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