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3. Graph points on a coordinate plane
Objective
Graph points on a coordinate plane
Example 3-4b

4. Vocabulary Coordinate plane
Two number lines that form right angles and intersect at their zero points
Example 3-4b

5. Vocabulary Coordinate grid
Two number lines that form right angles and intersect at their zero points
(coordinate plane)
Example 3-4b

6. The horizontal number line
Vocabulary
x-axis
The horizontal number line
x-axis
Example 3-4b

7. The vertical number line
Vocabulary
y-axis
The vertical number line
y-axis
Example 3-4b

8. The point of intersection of the two number lines
Vocabulary
Origin
The point of intersection of the two number lines
origin
Example 3-4b

9. Any point on the coordinate plane graphed using two numbers (x, y)
Vocabulary
Ordered pair
Any point on the coordinate plane graphed using two numbers (x, y)
(3, 2)
Example 3-4b

10. The first number in the ordered pair (abscissa)
Vocabulary
x-coordinate
The first number in the ordered pair (abscissa)
(3, 2)
Example 3-4b

11. The second number in the ordered pair (ordinate)
Vocabulary
y-coordinate
The second number in the ordered pair (ordinate)
(3, 2)
Example 3-4b

12. The number lines separate the coordinate plane into four sections
Vocabulary
Quadrant
The number lines separate the coordinate plane into four sections II I
III IV
Example 3-4b

13. Example 1 Name an Ordered Pair Example 2 Graph an Ordered Pair
Example 3 Identify Quadrants
Example 4 Identify Quadrants
Lesson 3 Contents

14. Name the ordered pair for point R graphed below.
Start at the origin.
Move left to find the x-coordinate of point R, which is –2.
Move up to find the y-coordinate, which is 4.
Answer:
R (–2, 4)
1/4
Example 3-1a

15. Name the ordered pair for point M graphed below.
Answer: M (3, –1)
1/4
Example 3-1b

16. Graph and label the point M (3, 5) M (3, 5).
Answer:
Graph and label the point M (3, 5)
M (3, 5).
Use a coordinate plane graph
Write the point and coordinate pair above the graph
M (3, 5)
Begin at origin
Using your pencil point, move 3 units to the right (do not draw a line)
Move 5 units up.
Draw a dot at the intersection
Label dot with letter and coordinate pair
2/4
Example 3-2a

17. Graph and label the point G(–2, –4)
Answer:
2/4
Example 3-2b

18. GEOGRAPHY Use the map of Utah shown below
GEOGRAPHY Use the map of Utah shown below. In which quadrant is Vernal located?
Locate axis of coordinate plane I
Determine quadrants II
Locate Vernal
Identify quadrant where Vernal is located IV
III
Answer:
Quadrant I
3/4
Example 3-3a

19. GEOGRAPHY Use the map of Utah shown below
GEOGRAPHY Use the map of Utah shown below. In which quadrant is Tremonton located?
Answer: Quadrant II
3/4
Example 3-3b

20. Name a city from the map of Utah shown below that is located in quadrant IV.
Locate axis of coordinate plane I
Determine quadrants II
Locate city in quadrant IV IV
Answer:
Bluff
III
4/4
Example 3-4a

21. Name a city from the map of Utah shown below that is located in III.*
Name a city from the map of Utah shown below that is located in III.
Answer: Cedar City
4/4
Example 3-4b

22. Geometry: The Coordinate Plane
Assignment
Lesson 3:3
Geometry: The Coordinate Plane
All
End of Lesson 3