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Bahasa Bali PAS Ganjil 2020/2021 Kls X

Authored by I Made Agus Suputrayasa

Mathematics

10th Grade

Bahasa Bali PAS Ganjil 2020/2021 Kls X
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79 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Selesaikan persamaan kuadrat x^2 - 5x + 6 = 0 dengan faktorisasi.

(x - 1)(x - 6) = 0

(x + 2)(x - 3) = 0

(x - 2)(x + 3) = 0

(x - 2)(x - 3) = 0

Answer explanation

To factorize x^2 - 5x + 6 = 0, we find two numbers that multiply to 6 and add up to -5, which are -2 and -3. Therefore, the correct factorization is (x - 2)(x - 3) = 0.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Hitung diskriminan dari persamaan kuadrat x^2 + 4x - 5 = 0.

36

-16

25

9

Answer explanation

Diskriminan dari persamaan kuadrat x^2 + 4x - 5 = 0 adalah (4)^2 - 4*1*(-5) = 36, sehingga jawaban yang benar adalah 36.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Tentukan akar-akar dari persamaan kuadrat x^2 - 9 = 0.

x = 1, x = -1

x = 3, x = -3

x = 4, x = -4

x = 2, x = -2

Answer explanation

The roots of the quadratic equation x^2 - 9 = 0 can be found by factoring it as (x - 3)(x + 3) = 0. Therefore, x = 3 or x = -3.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Apakah bentuk umum dari fungsi kuadrat?

f(x) = ax^2 + bx + c

f(x) = ax^3 + bx + c

f(x) = ax^2 + b

f(x) = a^2x + bx + c

Answer explanation

The correct form of a quadratic function is f(x) = ax^2 + bx + c, where a, b, and c are constants.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Berapa titik ekstrim dari fungsi kuadrat f(x) = x^2 - 4x + 3?

1

3

2

4

Answer explanation

Fungsi kuadrat memiliki 1 titik ekstrim yang merupakan minimum atau maksimum. Dalam kasus ini, f(x) = x^2 - 4x + 3 memiliki 1 titik ekstrim yaitu minimum.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Selesaikan persamaan kuadrat 2x^2 - 5x - 3 = 0 dengan rumus abc.

x1 = 3, x2 = -0.5

x1 = 1, x2 = -3

x1 = 4, x2 = -2

x1 = 2, x2 = -1

Answer explanation

Dengan rumus abc, x1 = (5 + sqrt(25 + 24))/4 = 3, x2 = (5 - sqrt(25 + 24))/4 = -0.5. Jadi, x1 = 3 dan x2 = -0.5.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Hitung nilai dari f(2) pada fungsi kuadrat f(x) = x^2 + 3x - 4.

10

6

8

-2

Answer explanation

To find f(2), substitute x=2 into the function f(x) = x^2 + 3x - 4. f(2) = 2^2 + 3(2) - 4 = 4 + 6 - 4 = 6. Therefore, the correct answer is 6.

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