Câu hỏi về hàm bậc hai
Quiz
•
Mathematics
•
10th Grade
•
Practice Problem
•
Hard
Lý Thị
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5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hàm nào sau là hàm số bậc hai?
A. y= x + 1
B. y=x 2 +3x-4
C. y= -2x+ 5
D. y=√ (x 2 +4x)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hệ số a của hàm y = -3 x 2 + 5x ?
-1
-3
0
3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hàm y = x 2 - 4x + 1 có đỉnh tại?
x = 1
x = 2
x = 3
x = 4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Đồ thị y = x 2 - 2x + 1 mở…?
Lên
Xuống
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
TXĐ của hàm số bậc hai?
A. R
B. N
C. Z
D. Q
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