
matematica Functia de gradul I
Authored by Daniela Milea
Mathematics
9th Grade
Used 36+ times

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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fie functia f:R->R, f(x) = -x+4. Calculați f(-2)+f(-1)+f(0)+f(1)+f(2).
-20
20
25
12
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Determinați coordonatele punctului de intersecție a graficelor funcțiilor f:R->R, f(x)=2x+3 și g:R->R, g(x)=-x+9
A(2;7)
A(-2;-7)
A(-2;7)
A(2;-7)
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Determinați coordonatele punctului de intersecție dintre funcția f:R->R, f(x)=-3x+9 și axa OX
A(0;-3)
A(-3;0)
A(3;0)
A(9;0)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Determinați coordonatele punctului de intersecție dintre funcția f:R->R, f(x)=-3x+9 și axa OY
B(0;9)
B(-9;0)
B(-9;9)
B(9;0)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Determinați numărul funcțiilor crescătoare de forma f:{1;2;3}->{1;2;3;4}
5
4
6
2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Determinați imaginea funcției f:[-2;2]->R dacă f(x)=-2x+1.
Im f=[-3;5]
Im f=[3;5]
Im f=[-13;15]
Im f=[0;3]
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Aflați numărul funcțiilor f:{1;2;3;4}->{1;2;3;4} cu proprietatea f(2)=f(3)
60
16
32
64
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