
ความสัมพันธ์และฟังก์ชัน (Relation & Function)
Quiz
•
Mathematics
•
4th Grade
•
Practice Problem
•
Hard
Nomin Uii
Used 1+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
ข้อใดเป็นฟังก์ชัน
ก.{(1,2),(1,3)(2,4)}
ข. {(1,2), (2,3), (3,4)}
ค. {(a,1), (b,2), (a,3)}
ง. {(5,5), (7,5), (5,5)}
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
เซต A = {1,2,3}, B = {a,b} ความสัมพันธ์จาก A ไป B มีกี่แบบ
ก. 4
ข. 6
ค. 8
ง. 12
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
ถ้า f(x) = 2x + 3, จงหา f(5)
ก. 8
ข. 10
ค. 13
ง. 20
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
ข้อใดไม่ใช่ฟังก์ชัน
ก. y = x²
ข. y² = x
ค. y = 3x - 1
ง. y = √x
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
ถ้า f(x) = x² - 1 แล้ว f(-2) มีค่าเท่าไร
ก. -3
ข. 3
ค. 5
ง. -5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
โดเมนของ f(x) = √(x - 2) คืออะไร
ก. x ≥ 2
ข. x > 2
ค. x ≤ 2
ง. ทุกจำนวนจริง
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
เซต A = {1,2}, B = {a,b,c} ฟังก์ชันจาก A → B ได้กี่แบบ
ก. 6
ข. 8
ค. 9
ง. 12
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