# 1Trắc nghiệm
ข้อใดต่อไปนี้ไม่ถูกต้อง
(5, –1) อยู่ในจตุภาคที่ 4
(–7, –2) อยู่ในจตุภาคที่ 3
(0, –3) อยู่บนแกน X
(–1, 6) อยู่ในจตุภาคที่ 2




10 câu hỏi
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