Tee Yuan Qin's answer to iliketostayathome's Secondary 1 Maths Singapore question.

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Tee Yuan Qin
Tee Yuan Qin's answer
44 answers (Tutor Details)
1st
Hi, take note that any line y=k for some constant k is a horizontal line through y axis. This is because y stays constant at the value k, for any x-value.
Any line x=h for some constant h is a vertical line through x axis. This is because x stays constant at value h, for any y-value.