Funcția de gradul al doilea
Interactive Video
•
Mathematics
•
9th Grade
•
Practice Problem
•
Easy
Mastan Eliza
Used 2+ times
FREE Resource
6 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cum depinde de semnul lui a orientarea ramurilor parabolei?
Dacă a > 0, ramurile sunt orientate în sus,iar dacă a < 0, ramurile sunt orientate în jos.
Dacă a > 0, ramurile sunt orientate în os,iar dacă a < 0, ramurile sunt orientate în sus.
Dacă a > 0, ramurile sunt orizontale; dacă a < 0, ramurile sunt verticale.
Orientarea ramurilor parabolei nu depinde de a
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Care sunt coordonatele vârfului parabolei?
(b/2a, Δ/4a)
(-b/2a, -Δ/4a)
(-b/a, -Δ/2a)
(b/a, Δ/2a)
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
În câte puncte intersectează parabola axa OX dacă Δ > 0?
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Care sunt coordonatele punctului de intersecție ale parabolei cu axa OY ?
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Studiind reprezentarea grafică a funcției, care afirmații de mai jos sunt adevărate?
a>0
f(x)>0 pentru x∈(1,5)
V(3,4)
a<0
6.
OPEN ENDED QUESTION
3 mins • 1 pt
Ți-a plăcut această lecție? De ce?
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