
TN - đại số 9
Authored by Sona Noya
Mathematics
9th Grade
Used 1+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Căn A tồn tại khi
A>=0
A<=0
A>0
A#0
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Chọn ý đúng với hàm số y = ax + b (a#0)
Hàm số đồng biến trên R khi a > 0
Hàm số đồng biến trên R khi a < 0
Hàm số nghịch biến trên R khi a < 0
Hàm số nghịch biến trên R khi x > 0
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Đồ thị hàm số y = ax^2 (a#0) là một đường .....
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Với hàm số y = ax^2 (a#0) có:
Nếu a > 0 hàm số nghịch biến khi x < 0 và đồng biến khi x > 0
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Với hàm số y = ax^2 (a#0) có:
Nếu a < 0 hàm số nghịch biến khi x > 0 và đồng biến khi x < 0
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Đồ thị hàm số y = ax^2 (a#0) nằm trên trục hoành khi .....
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Đồ thị hàm số y = ax^2 (a#0) nằm dưới trục hoành khi .....
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