
Revisão: Equações de 1° e 2° graus e função
Authored by Ana Clara
Mathematics
9th Grade
CCSS covered
Used 11+ times

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16 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Qual a raiz da equação
2x + 3x = 30?
5
6
7
8
Tags
CCSS.HSA.REI.A.1
CCSS.HSA.REI.B.3
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Qual o valor de x sabendo que a balança está em equilíbrio?
2
3
4
5
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
As raizes da equação são:
1 e 4
-1 e -4
4 e 5
Não existe raiz real
Tags
CCSS.HSA.REI.B.4
CCSS.HSA.APR.B.3
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
- - 4x² + 8x - 4 = 0
- As raízes da equação são:
1 e 1
-1 e -1
0
não existe raiz real
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A solução da equação x² = 100, é:
0 e 10
-10 e 0
50
10 e -10
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
x² + 9 = 0
9 e - 9
3 e - 3
Não tem raízes reais
0 e - 3
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Classifique as afirmações em V (verdadeira) ou F (falsa)
I. Se o discriminante da equação é igual a zero, ela tem duas raízes reais e iguais. ( )
II. Se o discriminante da equação é menor que zero, ela tem duas raízes reais diferentes. ( )
III. Se o discriminante da equação é maior que zero, ela tem duas raízes reais e diferentes. ( )
IV. Se o discriminante da equação é igual a zero, ela não tem raízes reais. ( )
V - V - V - F
V - V - F - F
F - V - F - V
V - F - V - F
Tags
CCSS.HSA.REI.B.4
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