1­6 guided notes.notebook answers.notebook
September 03, 2013
1‐6 Ordered Pairs and
Relations
Objectives:
• Use ordered pairs to locate points
• Use tables and graphs to represent
relations
Sep 3­11:09 AM
Vocabulary
• Coordinate System
• A system formed by the ___________________
_______________that meet at right angles at their zero
points, also called a coordinate plane
Sep 3­11:09 AM
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1­6 guided notes.notebook answers.notebook
September 03, 2013
Parts of a Coordinate System
y­axis­ ________ number line
x­axis­ ___________ number line
Origin­ is at (__, __), the point at which the number lines intersect
Ordered pair ( 2, 3)
__­coordinate ___­coordinate
Sep 3­11:09 AM
Graphing ordered pairs
•
Graph (3, 4)
•
Steps
•
Start at the ______ (0,0)
•
Look at the x‐coordinate (3) and move ___ units in the positive direction on the x‐axis
•
Look at the y‐coordinate (4) and move ___ units in the positive direction vertically
•
Make a dot to represent the ordered pair
Sep 3­11:09 AM
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1­6 guided notes.notebook answers.notebook
September 03, 2013
Graph the ordered Pairs
( 6, 2)
( 3, ­2)
( ­4, 7)
(­6, ­ 3)
Sep 3­11:09 AM
Identifying Ordered Pairs
•
Steps
•
Start on the origin
•
Count on the x‐axis the number of places the point is away from the origin. This is your x‐coordinate
•
Now, count the number of spaces the point is away from the x‐axis. This is your y‐coordinate
Sep 3­11:09 AM
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1­6 guided notes.notebook answers.notebook
September 03, 2013
Identify the Ordered Pairs
Sep 3­11:09 AM
relations
• Relation
• _______________________
• Example: { (2, 1), (6, ‐3), (0, 4) }
• Domain
• The set of ________________ from a relation
• The domain of the example is {__, __, __} notice, the
domain is written in ascending order.
• Range
• The of __________________ from a relation
• The range of the example is {__, __, __} again, this is
written in ascending order.
Sep 3­11:09 AM
4
1­6 guided notes.notebook answers.notebook
September 03, 2013
Domain and Range Practice
• Write the domain and range of the following relation
• {(1,2), (2, 4), (3, 0), (4, 5)}
• Range:
• Domain:
• Write the domain and range of the following relation
Sep 3­11:09 AM
Book work/Practice
• Pages 57‐58
• #1‐10 odds
• #13‐24 odds
• #25, 26
Sep 3­11:09 AM
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