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Fungsi Kuadrat

Authored by Jenny Sinaga

Mathematics

9th Grade

Used 32+ times

Fungsi Kuadrat
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10 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Fungsi f(x) = 3x2 - 10x + 9 memotong sumbu y di titik ....

(0, -10)

(0, 9)

(-10, 0)

(9, 0)

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Berikut ini fungsi kuadrat yang tidak memotong sumbu x adalah ....

x2 - 3x - 17

x2 - 4

3x2 + 6x + 2

3x2 - 10x + 9

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Fungsi f(x) = 6 + x - x2 memotong sumbu x di titik ....

(-6, 0) dan (1, 0)

(6, 0) dan (-1, 0)

(-3, 0) dan (2, 0)

(3, 0) dan (-2, 0)

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Persamaan sumbu simetri dari fungsi y = 2(x2 - 2x - 3) adalah ....

x = 1

x = -1

x = 2

x = -2

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Fungsi f(x) = 5 + bx - x2 memiliki sumbu simetri x = 2, maka nilai b adalah ....

-4

2

4

-2

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Nilai maksimum fungsi f(x) = 10 + 2x - x2 adalah .....

y = -8

y = 9

y = -10

y = 11

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Pernyataan berikut yang tidak sesuai dengan grafik fungsi f(x) = 2x2 + 5x - 12 adalah ....

memotong sumbu x di 2 titik yang berbeda

persamaan sumbu simetri x = -5/4

nilai minimum y = -121/8

nilai maksimum y = -121/8

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