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Vocabulary flashcards covering origin, coordinates (ordered pairs), and quadrants (I, III, IV) as mentioned in Page 1 notes.
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Origin
The point where the x-axis and y-axis intersect; coordinates (0,0).
Ordered pair (x,y)
A point's coordinates written as (x,y), with x the horizontal value and y the vertical value from the origin.
Quadrant I
The region where x > 0 and y > 0.
Quadrant III
The region where x < 0 and y < 0.
Quadrant IV
The region where x > 0 and y < 0.
Q1
Shorthand label for Quadrant I.
Q3
Shorthand label for Quadrant III.
Q4
Shorthand label for Quadrant IV.