2. Main Idea and New Vocabulary Key Concept: Coordinate Plane
Example 1: Naming Points Using Ordered Pairs
Example 2: Graph an Ordered Pair
Example 3: Real-World Example
Example 4: Real-World Example
Lesson Menu

3. Graph points on a coordinate plane.
quadrant
x-axis
y-axis
origin
ordered pair
x-coordinate
y-coordinate
Main Idea/Vocabulary

4. Key Concept

5. Naming Points Using Ordered Pairs
Write the ordered pair that corresponds to point R. Then state the quadrant in which the point is located.
• Start at the origin.
• Move left on the x-axis to find the x-coordinate of point R, which is –2.
• Move up to find the y-coordinate, which is 4.
Answer: So, point R corresponds to the ordered pair (–2, 4). Point R is located in Quadrant II.
Example 1

6. Write the ordered pair that corresponds to point L
Write the ordered pair that corresponds to point L. Then state the quadrant in which the point is located.
A. (–4, 1); Quadrant I
B. (4, 1); Quadrant I
C. (4, 0); Quadrant I
D. (4, 1); Quadrant II
Example 1 CYP

7. Graph and label point M at (3, 5). Answer:
Graph an Ordered Pair
Graph and label point M at (3, 5).
Answer:
• Start at the origin. The x-coordinate is 3. So, move 3 units to the right.
• Next, since the y-coordinate is 5, move 5 units up. Draw a dot and label M.
Example 2

8. Graph and label point H at (–1, 3).
A. C.
B. D.
Example 2 CYP

9. AQUARIUMS A map can be divided into a coordinate plane where the x-coordinate represents how far to move right or left and the y-coordinate represents how far to move up or down. What exhibit is located at (–5, –1)?
Example 3

10. Start at the origin. Move 5 units to the left and then 1 unit down.
Answer: Glover’s Reef is located at (–5, –1).
Example 3

11. AQUARIUMS What exhibit is located at (–4, 2)?
A. Sea Cliffs
B. Think Tank
C. Seaside Pavillion
D. Sharks
Example 3 CYP

12. Answer: The Fur Seals exhibit is located in Quadrants I and II.
AQUARIUMS In which quadrant or quadrants is the Fur Seals exhibit located?
Answer: The Fur Seals exhibit is located in Quadrants I and II.
Example 4

13. AQUARIUMS In which quadrant or quadrants is the Sea Cliffs located?
A. Quadrants I and IV
B. Quadrants I and II
C. Quadrants II and III
D. Quadrants III and IV
Example 4 CYP