
Recapitulare. Funcții
Authored by RUSU ADRIANA
Mathematics
9th - 12th Grade

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7 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Se consideră funcția f : ℝ -> ℝ , f (x) = 4 - 2x . Rezultatul calculului ( f ₒ f )(1) este:
1
2
0
-2
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Se consideră funcția f : ℝ -> ℝ , f (x) = 5 - x . Rezultatul calculului f(0) - f (1) este:
0
1
-1
2
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Fie funcția f : ℝ -> ℝ , f (x) = 5x + 1 . Rezultatul calculului f (2x) - 2f (x) este:
1
2
-2
-1
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Fie funcția f : ℝ -> ℝ , f (x) = x+2 . Numărul real a pentru care f (a) =6 este:
- 6
4
2
-4
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Abscisele punctelor de intersecție a graficului f : ℝ→ℝ, f (x) = x2 -10 x +9 sunt:
x =1 și x = 9
x = -3 și x = 3
y=1 și y=9
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Soluțiile întregi ale inecuației 3x2 -5x - 2 ≤ 0 sunt:
x ≤ 2
x∈ {-1, 1, 2}
x ∈{0, 1, 2}
7.
OPEN ENDED QUESTION
1 min • 4 pts
Numele tău este:
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