
TOÁN 9B+ | ÔN TẬP PT - BẤT PT - HỆ PT | T2 7/7/2025
Quiz
•
Mathematics
•
9th Grade
•
Practice Problem
•
Medium
Vinh Sư Phụ
Used 1+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hệ phương trình 3x - y = 5 và 2x + y = 5 có nghiệm (x; y) là:
(1; -2)
(3; 4)
(2; 1)
(1; 2)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(x; y) = (1; 1)
(x; y) = (7/5; 7/3)
(x; y) = (1; 1/2)
(x; y) = (5/7; 5/3)
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(8; 9)
(3; 2)
(9; 8)
(8; 4)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(x; y) = (3; 2)
(x; y) = (1; 3)
(x; y) = (2; 3)
Hệ vô nghiệm
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tìm giá trị của m để hệ phương trình x + my = 3 và 2x - y = 1 có nghiệm duy nhất (x; y) = (2; 3).
m = 1/3
m = 1/2
m = 1
m = -1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hệ phương trình 2x - 3y = 7 và -4x + 6y = 10 có bao nhiêu nghiệm?
Vô nghiệm
Một nghiệm duy nhất
Vô số nghiệm
Hai nghiệm
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hệ phương trình 3|x| + y = 5 và |x| - 2y = -3 có nghiệm là:
(1; 2) và (-1; 2)
(2; 1) và (-2; 1)
(1; 2)
Không có nghiệm
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