In the rectangular coordinate system, every point is represented by an:
AOpen interval
BObtuse angle
COrdered pair
DOdd integer
Answer & Solution
Correct answer: C. Ordered pair
1. A point on the plane needs two numbers to locate it.
2. The system has a horizontal and a vertical axis.
3. In the rectangular coordinate system, every point is represented by an ordered pair.
4. The order of the two numbers matters.
_Source: OpenStax Elementary Algebra 2e (CC BY 4.0), Ch 4 'Graphs', sections 4.1-4.7_
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