Coordinate Plane Guided Notes
Coordinate Plane Guided Notes
Vocabulary • Quadrants • Plotting • Locating Ordered Pairs
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Date:
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Part 1: Key Vocabulary & Definitions
1. The Coordinate Plane
Two perpendicular lines: the horizontal line is the -axis, and the vertical line is the -axis.
Intersection: Origin at (, ).
2. Ordered Pair (x, y)
• x-coord: Move (+) or (−).
• y-coord: Move (+) or (−).
Order matters: x is 1st, y is 2nd!
3. The 4 Quadrants
The 4 regions are numbered using Roman numerals moving in a direction.
Trick: "Walk before you " (x then y).
The Coordinate Plane Fill in Quadrant & Sign Badges
x y -5 -4 -3 -2 -1 1 2 3 4 5 5 4 3 2 1 -1 -2 -3 -4 -5 Quad ___ Signs: ( __ , __ ) Quad ___ Signs: ( __ , __ ) Quad ___ Signs: ( __ , __ ) Quad ___ Signs: ( __ , __ ) A B C D E
Origin: (0, 0) • Point E is on the y-axis
Fill In Quadrant Signs
Quadrant I ( , )
Quadrant II ( , )
Quadrant III ( , )
Quadrant IV ( , )
Points on Axes: NOT in Any Quadrant!
If one coordinate is 0, the point sits directly on an axis line.
If y = 0 → (x, 0) On the -axis
If x = 0 → (0, y) On the -axis
1
How to Plot a Point (x, y)
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- Always start at the with coordinates (0, 0).
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- Move along x-axis: go (+) or (−).
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- From there, move y: go (+) or (−).
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- Plot a solid and write the letter label.
2
How to Locate & Name a Point
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- Find the dot on the coordinate grid.
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- Look straight to the horizontal axis for the -value.
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- Look straight to the vertical axis for the -value.
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- Write inside parentheses with comma: .
Part 4: Guided Practice & Check
Use points marked on the grid above
| Point | x-value | y-value | Ordered Pair (x, y) | Quadrant or Axis |
|---|
| A | 3 | 2 | (3, 2) | Quadrant I (Example) |
| B | | | | |
| C | | | | |
| D | | | | |
| E | | | | |
1. Which quadrant is (-2, 5)? Quad:
2. Where is (4, 0) located? Loc:
3. Which quadrant is (3, -6)? Quad:
Coordinate Geometry • Scaffolded Guided Notes Rule of Thumb: (x, y) → Crawl (horizontal) before you fly (vertical)!
