
Ζ_Συνάρτηση . . .
Authored by giannis xantzis
Mathematics
10th Grade
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20 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Δίνεται συνάρτηση με τύπο f(x) = 3x + 12.
Να βρεθεί η τιμή f(-4).
f(-4) = 24
f(-4) = 0
f(-4) = - 24
τίποτα από τα προηγούμενα
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
τίποτα από τα προηγούμενα
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Δίνεται συνάρτηση f με τύπο f(x) = 3x + 12.
Για ποιο x ισχύει f(x) = 9 ;
x = 3
x = 1
x = - 1
τίποτα από τα προηγούμενα
Answer explanation
Αν f(x) = 9 τότε
3x + 12 = 9 δηλαδή
3x = 9 - 12
3x = - 3 και
x = - 1
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Δίνεται η διπλανή συνάρτηση f.
Αν f(x) = 10η, τότε ποιο είναι το x ;
x = Μ
x = Μ ή x = Β
x = Κ ή x = Ν
x = Σ
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Αν για τη συνάρτηση f(x) = αx + 5 ισχύει f(2) = 11,
τότε α = ;
α = 0
α = 1
α = 2
α = 3
Answer explanation
Αν είναι
f(2) = 11 τότε
α .2 + 5 = 11
2α = 11 - 5
2α = 6
α = 3
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Αν η συνάρτηση f(x) = x + 1 έχει πεδίο ορισμού Α = {1 , 2 , 3},
ποιο από τα παρακάτω είναι το f(A) ;
f(A) = {1 , 2 , 3}
f(A) = {2 , 3 , 4}
f(A) = {2 , 4 , 6}
Δεν ξέρω.
Answer explanation
Το σύνολο f(A) περιέχει τις τιμές
f(1) , f(2) , f(3).
Εύκολα βρίσκεις ότι f(1) = 2 , f(2) = 3 , f(3) = 4.
Άρα f(A) = {2 , 3 , 4}.
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Αν για τη συνάρτηση f ισχύει η σχέση
f(x - 2023) = x - 2022, για κάθε x∊ℝ , τότε
f(0) = ;
2.023
2.022
1
0
Answer explanation
Για x = 2023 έχουμε
f(0) = 2023 - 2022 άρα
f(0) = 1.
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