
Exercitii recapitulative
Authored by MADALINA DECU
Mathematics
8th Grade

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11 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fie funcția f:R→R, f(x)=2x-1. Punctul de intersecție cu axa Ox este:
A(0,1)
A(0,-12)
A(0,-1)
A(1/2,0)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fie funcția f:R→R, f(x)=4-x. Punctul de pe reprezentarea grafică a funcției f cu ordonata egală cu 7 are coordonatele:
A(7,-3)
A(3,7)
A(-3,7)
A(-7,-3)
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fie funcția f:R→R, f(x)=2x-1. Soluția ecuației 3f(x)=15 este:
13/2
3
2
8/3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dacă punctul C(2,3) se află pe reprezentarea grafică a funcției f:R→R, f(x)=2x-a, atunci valoarea reală a numărului a este egală cu:
1
-1
7
-7
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6/13
2/19
6/5
2/11
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
x∈R-{1,2}
x∈R-{1}
x∈R-{2}
x∈{1,2}
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
S={±5/6}
S={±1/12}
S={±5/12}
S={±5/3}
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