
Συναρτήσεις Quiz
Authored by Νίκος Τζίφας
Mathematics
8th Grade

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ποια από τις παρακάτω σχέσεις είναι συνάρτηση: (α) y = x^2 + 3, (β) x = y^2 - 1, (γ) y = 2x + 5?
y = 3x - 1
Σχέση (α) y = x^2 + 3
y = x^3 + 2
x = y^2 + 3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Να υπολογιστεί η τιμή της συνάρτησης f(x) = 2x - 1 για x = 3.
7
5
6
10
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Να σχεδιαστεί το γράφημα της συνάρτησης g(x) = x^3 - 4x^2 + 2x.
The graph of the function g(x) will be a straight line.
The graph of the function g(x) will have a local maximum at x = 2.
The graph of the function g(x) will have no critical points.
The graph of the function g(x) = x^3 - 4x^2 + 2x will have a local minimum at x = 2 and will be concave up to the left of x = 2 and concave down to the right of x = 2.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ποια είναι η τιμή της συνάρτησης h(x) = 3x + 2 για x = -1?
10
5
-1
0
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Να εκφραστεί η συνάρτηση k(x) = 4x - 5 σε μορφή συνάρτησης.
k(x) = 4x + (-5)
k(x) = 4x * 5
k(x) = 4x / 5
k(x) = 4x + 5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ποιο είναι το αντίστροφο της συνάρτησης f(x) = 2x + 1?
f^(-1)(x) = 1 / (2x)
f^(-1)(x) = (x + 1) / 2
f^(-1)(x) = (x - 1) / 2
f^(-1)(x) = 2 / (x - 1)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Να ερμηνευτεί το μοντέλο της συνάρτησης p(t) = 1000 * 1.05^t όπου t είναι ο χρόνος σε χρόνια.
Population grows by 5% each year.
Population decreases by 5% each year.
Population remains constant over time.
Population grows by 10% each year.
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