
Função Quadrática - Início
Authored by RODRIGO RIBEIRO
Education, Mathematics
3rd Grade
Used 2+ times

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16 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
a = 2, b = 3 e c = 4
a = 4, b = - 3 e c = 2
a = 4, b = 3 e c = 4
a = 2, b = - 3 e c = 4
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Se o valor do delta for igual a zero, a função quadrática
possui duas raízes reais e distintas.
não possui raízes reais.
possui raízes reais e iguais.
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
O termo independente da função do 2° grau é:
Coeficiente a
Coeficiente b
Coeficiente c
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A parábola possui duas raízes iguais quando:
Δ = 1
Δ > 0
Δ < 0
Δ = 0
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
8- Na função do 2º grau y = x² - 5x + 6, onde a parábola corta o eixo y?
2
4
6
8
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Analisando o gráfico da função ao lado. É verdade que
a raiz da função é (-2,0)
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A função f(x)=2x²-10x+21 possui ...
concavidade para baixo
concavidade para cima
outro gráfico sem ser uma parábola
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