Persamaan Linier
Quiz
•
Mathematics
•
12th Grade
•
Medium
INDAH CAHYANI
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10 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Tentukanlah himpunan penyelesaian dari sistem persamaan linier tiga variabel (SPLTV) berikut ini.
x + y – z = –3
x + 2y + z = 7
2x + y + z = 4
{(–1, -1, 4)}
{(–1, 2, -4)}
{(–1, 2, 4)}
{(–1, -2, 4)}
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Tentukan himpunan penyelesaian dari sistem persamaan linear tiga variabel berikut ini.
x + 3y + 2z = 16
2x + 4y – 2z = 12
x + y + 4z = 20
{(-7, 1, 3)}
{(7, -1, 3)}
{(7, 1, -3)}
{(7, 1, 3)}
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Harga 2 kg mangga, 2 kg jeruk, dan 1 kg anggur adalah Rp. 76.000, 00. Harga 1 kg mangga, 2 kg jeruk, 2 kg anggur adalah Rp. 98.000, 00. Harga 2 kg mangga, 2 kg jeruk, dan 3 kg anggur adalah Rp. 136.000. Nyatakan ke dalam model matematika!
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Diketahui sistem persamaan linear
.
Nilai x + y + z = …
-3
-2
-1
4
5
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Jumlah tiga bilangan sama dengan 45. Bilangan pertama ditambah 4 sama dengan bilangan kedua, dan bilangan ketiga dikurangi 17 sama dengan bilangan pertama. Bentuklah tiga persamaan linear tiga variable sesuai cerita di atas!
x + y + z = 45
x + 4 = y
z – 17 = x
x + 4 = y
z – 17 = x
x = 45
x + y + z = 45
z – 17 = x
y = 4z
x + y = 45
x + 4 = y
z = x + 17
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Jika himpunan penyelesaian dari sistem :
x - 2y + 4z = -3
3x + y - 2z = 12
2x + y - 3z = 11 adalah { x, y,z } maka nilai x . y . z = ….
-3
3
-6
4
6
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Nilai x dan y yang memenuhi sistem persamaan 3x + 2y = 6 ; 2x + 4y = - 4 adalah....
x = 1 ; y = 2
x = 0 ; y = 3
x = - 4 ; y = 3
x = 4 ; y = - 2
x = 4 ; y = - 3
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