Неравенства и система неравенств
Quiz
•
Mathematics
•
9th - 12th Grade
•
Practice Problem
•
Medium
Ann Still
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18 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 20 pts
Решите неравенство: 2x + 5 < 15
x < 5
x = 5
x > 5
x ≤ 5
2.
MULTIPLE CHOICE QUESTION
5 mins • 20 pts
Найдите множество решений неравенства: 3x - 7 ≥ 2x + 4
x > 11
x ≥ 11
x = 11
x ≤ 11
3.
MULTIPLE CHOICE QUESTION
1 min • 20 pts
Какое условие должно быть выполнено, чтобы система неравенств имела решение?
Области, определенные каждым неравенством, должны пересекаться.
Неравенства должны иметь одинаковые знаки
Все неравенства должны быть равенствами
Области, определенные каждым неравенством, должны быть параллельными
4.
MULTIPLE CHOICE QUESTION
5 mins • 20 pts
Решите систему неравенств:
x ≤ 1
x > 3
1 ≤ x < 3
1 < x ≤ 3
5.
MULTIPLE CHOICE QUESTION
1 min • 20 pts
Как называется точка пересечения графиков неравенств в системе?
Решение
Точка отсчета
График
Ответ
6.
MULTIPLE CHOICE QUESTION
3 mins • 20 pts
Решите неравенство: 4 - 2x > 10
x < 0
x < -3
x = -3
x > 3
7.
MULTIPLE CHOICE QUESTION
5 mins • 20 pts
Найдите множество решений неравенства: 2x + 3 ≤ 5x - 1
x ≥ 4/3
x ≤ 2
x > 1
x ≥ 3
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