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| Math Central | Quandaries & Queries |
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Question from JUSTIN, a student: jamie tells her friend that ordered pairs that have an x-coordinate of O line x-axis. She used the origin as an example. Describe Janine error. Use a counterexample to explain why Janine statement is false |
Hi Justin,
I think what Jamie told her friend was that "ordered pairs that have an x-coordinate of 0 lie on the x-axis". She used the origin $(0, 0)$ as an example.
Take three other points on the x-axis and write the coordinates of each. What do you notice?
Take three other points on the y-axis and write the coordinates of each. What do you notice?
Penny
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