
math_이차부등식
Quiz
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
김형석3 김형석3
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
절대값이 포함된 부등식을 푸는 방법 중 올바른 것은 무엇인가요?
|x - 2| > 3을 풀 때 x > 5 또는 x < -1이 된다
|2x + 3| < 2를 풀 때 x < -5 또는 x > 1이 된다
|x + 1| ≤ 0을 풀 때 x = -1이 된다
|x - 4| ≥ 0을 풀 때 x ≤ 4이 된다
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
다음 중 연립부등식에 대한 설명으로 옳은 것은 무엇인가요?
a < b이고 b > c이면 a < c이다
a < b이고 b < c이면 a > c이다
a > b이고 b > c이면 a > c이다
a > b이고 b < c이면 a > c이다
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
a>b>c 부등식을 풀 때 방법은 무엇인가요?
a > b, b > c 의 연립부등식으로 변형하여 푼다.
a < b < c 로 바꾸어 푼다.
a < b > c 로 변형하여 푼다.
a > b, a > c의 연립부등식으로 변형하여 푼다.
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
이차 부등식 k^2 - 4k > 0을 만족하는 k의 범위는?
k > 0 또는 k < 4
k < 0 또는 k > 4
k > 0 또는 k > 4
k < 4 또는 k > 4
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
다음 중 이차 부등식 (k-4)(x-2) > 0 의 해는?
k가 4보다 크거나 같고 k < 2
k가 0보다 작거나 같고 k > -2
k가 4보다 크거나 같고 k > 2
k가 0보다 작거나 같고 k < -2
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
연립방정식 2x + y = 10 과 x^2 + y^2 = 25 의 해가 아닌것은?
x = 3
y = 4
x = 5
y = 1
7.
MULTIPLE CHOICE QUESTION
2 mins • 2 pts
연립부등식 2 - x > 4 와 5x - 1 > x + 11 을 풀면?
x < -1
x > 3
-1 < x < 3
해는 없다
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