
..แบบทดสอบประจำบทที่ 1 เรื่อง ความสัมพันธ์และฟังก์ชัน
Authored by จินตนา ศิลา
Mathematics
10th Grade
Used 181+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
ข้อใดเป็นตัวผกผันของความสัมพันธ์
r = { (3, 1), (0, -2), (-2, 7), (-1, -5) }
{ (-3, -1), (0, 2), (2, -7), (1, 5) }
{ (1, 3), (-2, 0), (7, -2), (-5, -1) }
{ (3, 1), (0, -2), (-2, 7), (-1, -5) }
{ (0, -2), (3, 1), (-1, -5), (-2, 7) }
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
ข้อใดไม่เป็นฟังก์ชัน
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
ข้อใดเป็นฟังก์ชัน
{ (0, -1), (0, 2), (0, 3), (0, 5) }
{ (-1, 0), (0, 2), (3, 7), (3, 9) }
{ (1, 2), (2, 6), (3, -4), (4, 0) }
{ (2, 6), (0, -2), (2, 4), (-3, 6) }
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
f(x) = {(0, -1), (1, 3), (2, 4), (3, 5), (5, 2) } แล้ว f(3) + f(5) คือข้อใด
5
7
9
12
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
ข้อใดเป็นฟังก์ชัน 1-1
f = { (2, 6), (3, 6), (4, 9) }
f = { (2, 6), (3, 8), (4, 9) }
f = { (2, 8), (3, 8), (4, 6) }
f = { (2, 6), (2, 1), (3, 8) }
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
f = { (-2, 1), (0, 1), (3, 2), (5, 0) }
g = { (-2, 4), (0, 2), (4, 1), (6, -3) }
จงหา f - g
{ (-2, -3), (0, -1) }
{ (-2, 5), (0, 2) }
{ (-2, 4), (0, 2), (-2, 1) }
{ (3, 2), (5, 0) }
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
f(x) = x + 3 , g(x) = 2x - 1 จงหา f(g(2))
-2
0
4
6
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