
Funcții -sinteza cl.9
Authored by Vatavu Liliana
Science
1st - 5th Grade
Used 6+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Reprezentarea geometrică a graficului funcției de gradul II este
Hiperbolă
o dreaptă
parabolă cubică
parabolă
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Funcția f:R→R, f(x)=ax+b, a≠0, a,b,c ϵ R se numește funcție
de gradul II
proporționalitate inversă
funcție de gradul I
funcția radical
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dacă a>0 și Δ <0 semnul valorii funcției este
negativ
pozitiv
nenegativ
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
strict descrecătoare
constantă
strict crescătoare
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fie f:R→ R, f(x)=ax+b, a ≠ 0, a,b,cϵ R. Dacă a>0 atunci unghiul format de graficul funcției f cu axa Ox este
obtuz
ascuțit
drept
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ordonata vârfului parabolei se calculează
−b/2a
−Δ/4a
(−b/2a ; −Δ/4a)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dacă a<0, graficul funcției de gradul doi este
o pararabolă cu ramurile în sus
o parabolă cubică
o parabolă cu ramurile în jos
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