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Persamaan dan Fungsi Kuadrat

Authored by Frans Sugara

Mathematics

9th Grade

Used 6+ times

Persamaan dan Fungsi Kuadrat
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20 questions

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1.

MULTIPLE CHOICE QUESTION

20 sec • 10 pts

4

3

1

-4

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Persamaan kuadrat yang akar-akarnya 5 dan 2 adalah…

x2+ 7x+10 =0

x2 -7x+10 =0

x2+3x+10 =0

x2+ 7x-10 =0

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Nilai diskriminan persamaan kuadrat x2 +6x+8 =0

2

4

8

36

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Bentuk umum persamaan kuadrat adalah ....

ax2+bxc=0 , a0ax^2+bx-c=0\ ,\ a\ne0

ax2+bx+c=0 , a0ax^2+bx+c=0\ ,\ a\ne0

ax2+bx+c=0 , a=0ax^2+bx+c=0\ ,\ a=0

ax2bx+c=0 , a=0ax^2-bx+c=0\ ,\ a=0

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Akar-akar persamaan kuadrat 2x2 + 9x + 4 = 0 adalah ...

x1 = 4 atau x2 = 1/2

x1 = 4 atau x2 = -1/2

x1 = -4 atau x2 = 1/2

x1 = -4 atau x2 = -1/2

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Berikut yang merupakan rumus kuadrat (rumus abc) adalah?

x1.2 = b ±b2 4ac2ax1.2\ =\ \frac{-b\ \pm\sqrt{b^{2\ }-4ac}^{ }}{2a}

x1.2 = b ±b2 4ac2ax1.2\ =\ \frac{b\ \pm\sqrt{b^{2\ }-4ac}^{ }}{2a}

x1.2 = b ±b2 +4ac2ax1.2\ =\ \frac{-b\ \pm\sqrt{b^{2\ }+4ac}^{ }}{2a}

x1.2 = b ±b2 +4ac2ax1.2\ =\ \frac{b\ \pm\sqrt{b^{2\ }+4ac}^{ }}{2a}

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Nilai x1 + x2 dari persamaan x2 - 15x + 14 adalah....

15

-15

14

-14

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