
Funcții- evaluare inițială
Quiz
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
Daniela Mocanu
Used 1+ times
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9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Care din perechile de funcții reprezintă funcții egale?
f:{-2; 0; 1}→{0; 1; 2; 3; 4}, f(x)=x2
g:{-2; 0; 1}→{0; 1; 2; 3; 4},
g(x)=x+2
f:{-1; 0; 1}→ℕ, f(x)=∣x∣
g:{-1; 0; 1}→ℕ,
g(x)=x2
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Care dintre punctele de mai jos aparțin graficului funcției f:ℝ→ℝ, f(x)=-x+1
M(3; 2)
N(-3; -4)
P(0; 1)
3.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
Mulțimea valorilor funcției f:{-2; 0; 1}→B, f(x)=x+3, este B={..........}
4.
FILL IN THE BLANK QUESTION
10 mins • 1 pt
Punctul A(-1; 1) aparține graficului funcției f:ℝ→ℝ, unde f(x)=ax+2, a∈ℝ, pentru a=
5.
FILL IN THE BLANK QUESTION
3 mins • 1 pt
Graficul funcției f:ℝ→ℝ, f(x)=x-2 intersectează axa absciselor în punctul A de coordonate:
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Care din diagramele de mai jos descrie o funcție?
7.
FILL IN THE BLANK QUESTION
10 mins • 1 pt
Punctele A(-1; -1) și B(1; 3) aparțin graficului funcției f:ℝ→ℝ, f(x)=ax+b, dacă a=... și b=...
8.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Reprezentarea geometrică a graficului funcției f:(-∞; 2]→ℝ, f(x)=x+1 este:
o dreaptă
un segment
o semidreaptă
9.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Punctul de intersecție al graficelor funcțiilor f:ℝ→ℝ, f(x)=-x+1 și g:ℝ→ℝ, g(x)=-2x+2 este:
A( 1; 0)
B(0; 1)
C( -1; 0)
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