Quizizz - Revisão de Equações do 2° grau

Quiz
•
Mathematics
•
9th Grade
•
Hard
Standards-aligned
Prof. Izabel
Used 69+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das seguintes equações é do segundo grau?
3x - 1 -x² = 0
0x² + 4x – 3 = 0
x + x + 6 = 0
2x3- 8x - 2 = 0
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quais são os coeficientes da equação
9x² - 6x +1 = 0?
a = 6
b = 2
c = 1
a= 9
b= - 6
c = 1
a= 9
b= 6
c= 1
a= 2
b= 6
c= 1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das equações do 2º grau a seguir, são incompletas?
x² - 7x + 10 = 0
– x² – x +1 = 0
4x² - 4x + 1 = 0
x² - 16 = 0
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O Conjunto Solução da equação x² = 100, é:
0 e 10
-10 e 0
50
10 e -10
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O conjunto solução da equação x² + 9 = 0 é?
9 e - 9
3 e - 3
Não tem raízes reais
0 e - 3
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Os valores dos coeficientes a, b e c são respectivamente:
a=1; b=-3; c=2
a=0; b=3; c=2
a=1; b=3; c=2
a=-1; b=-3; c=-2
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
O conjunto solução da equação x² + 4x = 0, é:
2 e - 2
0 e 4
0 e - 4
0 e - 2
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