
QUIZ EKPONEN
Authored by elsi elsi
Mathematics
12th Grade
Used 4+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 7 pts
Bila x = 5, tentukanlah penyelesaian dari f (x) = x2 + 1!
A. 24
B. 25
C. 26
D. 27
Answer explanation
Persamaan fungsi f (x) = x2 + 1
Diketahui x = 5
Maka
f (x) = x2 + 1
f (x) = 52 + 1
f (x) = 25 + 1 = 26
Jawaban: Jadi, jawaban yang benar untuk contoh soal nomor 1 adalah C. 26.
2.
MULTIPLE CHOICE QUESTION
30 sec • 7 pts
Bila x = 3, tentukanlah penyelesaian dari f (x) = x3 !
A. 9
B. 18
C. 63
D. 27
Answer explanation
Persamaan fungsi f (x) = x3
Diketahui x = 3
Maka
f (x) = x3
f (x) = 33
f (x) = 27
Jawaban: Jadi, jawaban yang benar untuk contoh soal nomor 2 adalah D. 27
3.
MULTIPLE CHOICE QUESTION
30 sec • 7 pts
Bila penyebut dari bentuk 4/3 + 11 dirasionalkan, maka akan menjadi…
A. -2 (3 – 11)
B. -2 (3 + 11)
C. -2 (3 – 12)
D. -3 (3 – 11)
Answer explanation
4/3 + 11 = 4/311 . 3 – 11 /3- 11
= 4 (3 – 11) / 9-11
= 4 (3 – 11)/-2
= -2 (3-11)
Jawaban: Jadi, jawaban yang benar untuk contoh soal nomor 3 adalah A. -2 (3 – 11)
4.
MULTIPLE CHOICE QUESTION
30 sec • 7 pts
Tentukanlah penyelesaian dari fungsi eksponen 4x = 64 !
A. 3
B. 2
C. 4
D. 1
Answer explanation
Penyelesaian:
(22)x = 26
22x = 26
2x = 6
x = 3
Jawaban: Jadi, jawaban yang benar untuk contoh soal nomor 4 adalah A. 3
5.
MULTIPLE CHOICE QUESTION
30 sec • 7 pts
Tentukanlah penyelesaian dari fungsi eksponen 3x2 – 4x + 1 = 1/81
A. x = 3 atau x = 1
B. x = 2 atau x = 1
C. x = 4 atau x = 1
D. x = 1 atau x = 1
Answer explanation
3x2 – 4x + 1 = 1/81
3x2 – 4x + 1 = 1/34
3x2 – 4x + 1 = 3-4
X2 – 4x + 1 = -4
X2 – 4x + 3 = 0
(x – 3) (x – 1) = 0
x = 3 atau x = 1
Jawaban: Jadi, jawaban yang benar untuk contoh soal nomor 5 adalah A. x = 3 atau x = 1
6.
MULTIPLE CHOICE QUESTION
30 sec • 7 pts
Tentukanlah berapa eksponen dari 10!
A. 100
B. 1000
C. 10
D. 1
Answer explanation
Penyelesaian:
Eksponen dari 10 = 101 = 10
Jawaban: Jadi, jawaban yang benar untuk contoh soal nomor 6 adalah C. 10
7.
MULTIPLE CHOICE QUESTION
30 sec • 6 pts
Tentukanlah eksponen dari 26 = !
A. 4
B. 64
C. 16
D. 25
Answer explanation
Eksponen dari 26 adalah = 2 x 2 x 2 x 2 x 2 x 2 = 64
Jawaban: Jadi, jawaban yang benar untuk contoh soal nomor 7 adalah B. 64
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