
Câu hỏi về phương trình bậc nhất
Authored by Thoa Nguyen
Social Studies
9th Grade

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11 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nhn bit: Phng tr`ınh bc nht hai n c ́o dng n`ao?
ax+by=c
ax^2+by^2=c
ax+b=c
x^2+y^2=c
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nhn bit: Trong phng tr`ınh 2x+ 3y= 6, h s ca binxl`a g`ı?
2
3
6
1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Thˆong hiu: Gii phng tr`ınh 3x−4y= 12 khix= 2.
y= 0
y=−3
y= 3
y=−2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Thˆong hiu: Trong h phng tr`ınh sau, s lng nghim l`a bao nhiˆeu?
Khˆong c ́o nghim
Mt nghim
Vˆo s nghim
Hai nghim
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vn dng: T`ım gi ́a tr caxtrong phng tr`ınh 5x+ 2y= 20 khiy= 4.
x= 2
x= 4
x= 6
x= 8
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vn dng: H phng tr`ınh n`ao sau ˆay c ́o vˆo s nghim?
(x+ 2y= 3, 2x+ 4y= 6)
(x+ 2y= 3, 2x+ 4y= 7)
(2x−y= 5, x+y= 6)
(x−y= 3, 2x+y= 5)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vn dng cao: T`ımav`abh phng tr`ınh sau c ́o vˆo s nghim.
a= 2,b= 4
a= 4,b= 2
a= 4,b= 4
a= 2,b= 2
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