
Functii (cl.IX)
Quiz
•
Mathematics
•
1st - 2nd Grade
•
Practice Problem
•
Hard
+1
Standards-aligned
Rodica Bordian
Used 14+ times
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9 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Fie funcția f: R---R, f(x) =2x-1.
Care dintre afirmațiile de mai jos este adevărată?
a) f(-4,5)=8
b) f(0)=1
c) f(-1/2)=-5
d) f(15)=29
Tags
Funcția de gradul I
2.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Fie funcția f: R*-----R*, f(x)=k/x.
Aflați valoarea lui k, dacă punctul A(-5;3) aparține graficului funcției f.
Answer explanation
Substituim X=-5 și f(x)=3 în formula respectivă.
Tags
Proporționalitatea inversă
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Tags
Funcția radical
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Fie funcția f: R---R, f(x)=3x2-5x+2
Scrieți în spațiul gol unul dintre semnele: <, =, > , astfel încât să obțineți o propoziție adevărată: f(-2) ...... f(1) .
>
<
=
Tags
Funcția de gradul II
5.
FILL IN THE BLANK QUESTION
3 mins • 1 pt
Fie funcția f: R---R, f(x)=3x 2 -5x+2.
Determinați E(f).
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Fie funcția f: R---R, f(x)=3x 2 -5x+2.
Funcția este strict descrescătoare pe intervalul:
7.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
Fie funcția f: R---R, f(x)=3x 2 -5x+2.
min f(x)=
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