
Linear inequalities in 2 variables
Authored by Khanh Nguyen
Mathematics
10th Grade

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10 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Trong mặt phẳng tọa độ Oxy, diện tích phần được tạo thành bởi các y = 0, x = 0 , y = 2 - x là :
2
1
3
4
6
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Cặp số nào thỏa mãn bpt bậc nhất 2 ẩn : 5x + 3y <= 18
( 3 ; 5 )
( 5 ; 3 )
( 0 ; 4 )
( 1 ; 5 )
( 2 ; 3 )
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
2
-2
-1
1
3
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Hàm số nào dưới đây đồng biến trên R
y = 1
y = x - 5
y = - 4x + 6
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Bất phương trình 3x - 2(y - x + 1) > 0 tương đương với bất phương trình nào trong số các bất phương trình sau đây?
x - 2y - 2 > 0
5x - 2y - 2 > 0
5x - 2y - 1 > 0
4x - 2y - 2 > 0
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Cặp số (2; 3) là nghiệm của bất phương trình nào sau đây?
2x - 3y - 1 > 0
x - y < 0
4x > 3y
x - 3y + 7 < 0
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
A ( 0 ; 1 )
B ( 1 ; - 1 )
C ( 1 ; 3 )
D ( -1 ; 1 )
E ( 2 ; 5 )
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