DS 10 HÀM SỐ BẬC HAI

Quiz
•
Mathematics
•
10th Grade
•
Medium
Diệu Thị
Used 2+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
x=3
x=-3
(3; 50)
(-3; -22)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Đường thẳng x=1
Đường thẳng x=-1
(1 ; 2)
(-1; 14)
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho parabol (P) y=ax2 +bx+c (aǂ0). Khẳng định nào sau đây là sai?
(P) có tọa độ đỉnh là O(0; 0)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Đỉnh của parabol là
(1;4)
(4;1)
(-4;1)
(1;-4)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hàm số đồng biến trên khoảng nào
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho (P): y=ax2 + bx + c. Phát biểu nào sau đây là sai?
a>0
(P) có trục đối xứng là x = 3
(P) có trục đối xứng là y=-2
(P) có đỉnh (P) (3;-2)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(P) sau có công thức là
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