TES DIAGNOSIK RELASI DAN FUNGSI

TES DIAGNOSIK RELASI DAN FUNGSI

8th Grade

10 Qs

quiz-placeholder

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TES DIAGNOSIK RELASI DAN FUNGSI

TES DIAGNOSIK RELASI DAN FUNGSI

Assessment

Quiz

Mathematics

8th Grade

Hard

Created by

Mellinda Vimala

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Jika 5 × (-8) + 40 : 2 = y, maka nilai y adalah …

10

-10

-20

Answer explanation

To find the value of x, first calculate 12 × (-4) = -48 and 75 ÷ 3 = 25. Then, -48 + 25 = -23. Therefore, the value of x is -23.

2.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

6 + (-5) x 4 – 7 = …

-21

-3

21

Answer explanation

To solve the expression, follow the order of operations (PEMDAS/BODMAS). First, multiply -5 by 4 to get -20. Then, add 6 to -20 to get -14. Finally, subtract 7 from -14 to get -21. Therefore, the correct answer is -21.

3.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Bentuk -6x2 – x + 4y variabel-variabelnya adalah ...

-6, -1, dan 4

x2, x, dan y

x + y

Answer explanation

Bentuk -6x^2 - x + 4y memiliki variabel x^2, x, dan y karena terdapat suku dengan pangkat 2 (x^2), suku linier (x), dan suku konstan (y).

4.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Hasil penjumlahan dari -3a – 6b + 7 dan 13a – (-2b) + 4 adalah …

16a - 8b + 11

10a + 4b + 11

10a - 4b + 11

Answer explanation

To find the sum, combine like terms: -3a + 13a = 10a, -6b - (-2b) = -4b, 7 + 4 = 11. Therefore, the result is 10a - 4b + 11.

5.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Hasil perkalian dari (4x – 5)(3x + 3) adalah ...

12x2 – 3x – 15

12x2 + 3x - 15

12x2 – 27x - 15

Answer explanation

To find the product of (4x - 5)(3x + 3), apply the distributive property. Multiply each term in the first expression by each term in the second expression. Simplify the result to get 12x^2 - 3x - 15, which is the correct answer choice.

6.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Kumpulan berikut yang bukan merupakan himpunan adalah …

Kumpulan siswa SMPN 22 Surabaya kelas VIII yang berkacamata

Kumpulan hewan berkaki empat

Kumpulan siswa yang tinggi

Answer explanation

Kumpulan siswa yang tinggi adalah himpunan yang tidak jelas kriteria tingginya, sehingga bukan merupakan himpunan yang terdefinisi dengan baik.

7.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Apabila A = { x | 1 ≤ x < 13, x  Bilangan Prima} maka anggota A adalah …

{1, 3, 5, 7, 11}

{2, 3, 5, 7, 9}

{2, 3, 5, 7, 11}

Answer explanation

The set A consists of prime numbers between 1 and 13, which are 2, 3, 5, 7, and 11. Therefore, the correct answer is {2, 3, 5, 7, 11}.

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