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Câu hỏi về phương trình bậc nhất

Authored by Thoa Nguyen

Social Studies

9th Grade

Câu hỏi về phương trình bậc nhất
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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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