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persamaan dan fungsi kuadrat kelas 9 2020

Authored by aji wibowo

Mathematics

9th Grade

Used 185+ times

persamaan dan fungsi kuadrat kelas 9 2020
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25 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Perhatikan persamaan-persamaan berikut!

(i) 2x2 – 5 = 0

(ii) 2x2 + 3x3 = 0

(iii) 3x + 6 = 0

(iv) 3x2 + 5x + 9 = 0

Yang merupakan persamaan kuadrat adalah….

(i) dan (ii)

(i) dan (iii)

(ii) dan (iv)

(i) dan (iv)

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Persamaan 2x (x + 5) = 3x – 4 jika diubah ke bentuk umum persamaan kuadrat adalah….

2x2 – 7x + 4 = 0

2x2 + 7x + 4 = 0

– x2 + 7x + 4 = 0

x2 – 7x + 4 = 0

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Faktor dari 3x2 – 6x = 0 adalah….

3x(x – 3) = 0

3x(x – 2) = 0

3(x2 – 2)

3(x2 – 2x)

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Salah satu faktor dari x2 – 7x + 12 adalah….

x – 2

x – 3

x + 3

x + 4

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Nilai diskriminan dari persamaan kuadrat 2x2 – 3x – 5 = 0 adalah….

– 31

20

29

49

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Agar persamaan kuadrat 4x2 – 12 x + p = 0 memiliki akar kembar, maka nilai p = ….

– 9

– 3

3

9

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

ika salah satu akar dari persamaan kuadrat x2 + 3 x + c = 0 adalah 2, maka nilai c yang memenuhi adalah….

– 10

– 5

5

10

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