
Hàm số bậc 2
Quiz
•
Mathematics
•
10th Grade
•
Practice Problem
•
Easy
Đại Thị Phương Thị
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11 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 1. Hàm số nào sau đây là hàm số bậc hai
A. y = x2 + 2x
B. y = 3x
D. y = x
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 2. Cho hàm số bậc hai f(x) = x2 + 3x. Khẳng định nào sau đây đúng
f (2) > 9
f (2) = 11
f (2) < 8
f (2) = 13
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 3. Có bao nhiêu số tự nhiên m < 10 để
y = (m-2)x2 - 3x + m là hàm số bậc hai
6
8
9
7
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 4. Tìm hoành độ đỉnh của đồ thị hàm số y = x2 + 2x
1
0
-1
2
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Câu 5. Hàm số y = x2 - 2x + 5 đồng biến trên khoảng nào sau đây
( 0 ; 3 )
( 0 ; 5 )
( 1 ; 5 )
( -5 ; 0 )
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Câu 6. Đồ thị hàm số y = x2 + 2x - 1 có tọa độ đỉnh là
I (-1;-2 )
I (-1,2)
I (1;2)
I ( -1;-4)
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Câu 7. Số giao điểm của parabol ( P ): y = x2- 5x- 6 với trục hoành là
1
0
2
3
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