ôn tập bài 1 và bài 2
Quiz
•
Mathematics
•
9th Grade
•
Medium
Oanh Le
Used 31+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
phương trình nào sau đây là phương trình bậc nhất 2 ẩn?
2x+ 3y = -1.
2x3 + 3y = 0.
0x +0y =1
9x2 + 5y2 = 3
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
cặp số nào là nghiệm của phương trình : 3x -y = 2
(3, 1)
(-1, 2)
(3, -2)
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
cặp số nào sau đây là nghiệm của hệ phương trình:
(2, 0)
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Trong các hệ phương trình sau, hệ nào là hệ phương trình bậc nhất 2 ẩn?
2x + 5y = 1.
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
cho biết điều kiện xác định của phương trinh sau:
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
cho biết mẫu thức chung của phương trình sau:
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Thời gian xe đạp đi trên quãng đường dài 50km với vận tốc x km/h là:
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