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PERSAMAAN DAN FUNGSI KUADRAT

Authored by Ernawati Ernawati

Mathematics

12th Grade

Used 7+ times

PERSAMAAN DAN FUNGSI KUADRAT
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17 questions

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1.

MULTIPLE CHOICE QUESTION

10 mins • 10 pts

Himpunan penyelesaian dari x² - 5x + 6 = 0 adalah ....

{-6, 1}

{-1,6}

{-3, -2}

{2, 3}

2.

MULTIPLE CHOICE QUESTION

5 mins • 10 pts

Grafik fungsi y = x2 – 4x – 8 memotong sumbu y di titik:

{-8,0}

{0,-8}

{8,0}

{0,8}

3.

MULTIPLE CHOICE QUESTION

5 mins • 10 pts

Persamaan sumbu simetri dari parabola y = -x2 – 2x +8 adalah

x = 2

x= -2

x =1/2

x = -1/2

4.

MULTIPLE CHOICE QUESTION

5 mins • 10 pts

titik optimum fungsi f(x) = x2 – 4x – 21 adalah:

(0, -21)

(-2, 25)

(1, -24)

(2, -25)

5.

MULTIPLE CHOICE QUESTION

2 mins • 5 pts

Fungsi kuadrat

y=-x2+2x+24

memiliki kurva…

terbuka ke atas

terbuka ke kanan

terbuka ke bawah

terbuka ke kiri

6.

MULTIPLE CHOICE QUESTION

5 mins • 10 pts

Diketahui persamaan kuadrat 3x2– 8x + 1 = 0. Nilai diskriminan persamaan tersebut adalah ….

76

64

54

52

7.

MULTIPLE CHOICE QUESTION

10 mins • 10 pts

titik puncak dari kurva fungsi kuadrat y=x2+4x-5 adalah …

(−4,5)

(2,9)

(4,−3)

(-2,-9)

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