
Ζ_ΣΥΝΑΡΤΗΣΕΙΣ_ΑΝΤΙΣΤΡΟΦΗ
Authored by giannis xantzis
Mathematics
10th Grade
Used 2+ times

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25 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Αν f(x) = 2x + 5 , τότε f(2) = . . .
2
5
9
12
Answer explanation
f(2) = 2 . 2 + 5
f(2) = 4 + 5
f(2) = 9
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Αν f(x) = 2x + 5 , τότε f(-2) = . . .
-9
1
5
0
Answer explanation
f(-2) = 2 . (-2) + 5
f(-2) = - 4 + 5
f(-2) = 1
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Δίνεται η συνάρτηση f(x) = 2x + 5 .
Αν f(κ) = - 15, τότε κ = . . .
-5
10
5
-10
Answer explanation
f(κ) = -15 δηλαδή
2κ + 5 = - 15 και
χωρίζω γνωστούς από αγνώστους
2κ = - 15 - 5
2κ = - 20
κ = - 10
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Δίνεται η συνάρτηση f(x) = 2x + 5 .
Αν f(κ) = - 15, τότε κ = . . .
-5
10
5
-10
Answer explanation
f(κ) = -15 δηλαδή
2κ + 5 = - 15 και
χωρίζω γνωστούς από αγνώστους
2κ = - 15 - 5
2κ = - 20
κ = - 10
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Δίνονται δύο συναρτήσεις f(x) = 2x - 5 και g(x) = 3x + m.
Aν g(1) = f(4) ,
τότε m = . . .
m = 0
m = 1
m = -1
m = 2
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Δίνεται συνάρτηση τέτοια, ώστε
f(2x + 5) = 6x - 8.
Το f(5) = . . .
f(5) = 22
f(5) = - 8
f(5) = 0
Answer explanation
Για να βρούμε το f(0) βάζουμε
όπου x = 0.
Οπότε f(2.0+ 5) = 6.0 - 8
f(5) = 0 - 8
f(5) = - 8
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Δίνεται συνάρτηση τέτοια, ώστε
f(2x + 5) = 6x - 8.
Το f(9) = . . .
f(9) = 46
f(9) = - 8
f(9) = 4
Answer explanation
Για να βρούμε το f(9) βάζουμε
όπου x = 2.
Οπότε f(2.2+ 5) = 6.2 - 8
f(9) = 12 - 8
f(9) = 4
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