
bài tập ôn
Authored by Nguyen Nam
Mathematics
9th Grade
Used 4+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 4 pts
Phương trình bậc nhất hai ẩn có dạng:
ax+by=c
a+by=c
ax+b=c
a+b=c
2.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
cho phương trình: 5x+4y=8 . Hãy cho biết cặp số nào sau đây là nghiệm của phương trình:
(-2;1)
(-1;0)
(4;-3)
(2;0)
3.
MULTIPLE CHOICE QUESTION
1 min • 8 pts
giải hệ phương trình sau:
x=3
y=5
x=8
y=9
x=11
y=34
x=10
y=7
4.
MULTIPLE CHOICE QUESTION
45 sec • 4 pts
trong các hàm số sau hàm số nào là phương trình bậc hai một ẩn
y=ax+b
y=3
y=ax^2
y=a+bx
5.
MULTIPLE CHOICE QUESTION
45 sec • 5 pts
Đồ thị của hàm số y=ax+b và đồ thị hàm số y=ax^2 là đường như thế nào?
là 2 đường thẳng
là đường nét đứt-đường nét liền
đường thẳng-đường parabol
đương parabol-đường thẳng
6.
MULTIPLE CHOICE QUESTION
1 min • 6 pts
Cho hàm số y=f(x)=2X^2 + 3
tính giá trị của f(-3) và f(6)
1.f(-3)=21
2.f(6)=75
1.f(-3)=20
2.f(6)=74
1.f(-3)=21
2.f(6)=23
1.f(-3)=15
2.f(6)=75
7.
MULTIPLE CHOICE QUESTION
1 min • 6 pts
Hai đường thẳng y=ax + b (a#0) và y=a'x + b (a'#0) song song ,cắt nhau,trùng nhau khi nào?
1.a=a',b#b'
2.a#a'
3.a=a' , b=b'
1.a#a',b#b'
2.a=a'
3.a=a' , b=b'
1.a=a',b#b'
2.a#a'
3.a#a' , b=b'
1.a=a',b#b'
2.a=a'
3.a=a' , b=b'
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