
Funções Quadráticas
Authored by Mariana Omena
Mathematics
11th Grade
Used 25+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o nome dado ao ponto máximo ou mínimo do gráfico de uma função quadrática?
Foco
Vértice
Raiz
Interseção
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A função f(x) = ax² + bx + c tem concavidade voltada para cima quando:
a = 0
a < 0
a > 0
b > 0
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se uma função do 2º grau possui Δ = 0, o que se pode afirmar sobre suas raízes?
Não possui raízes reais
Possui duas raízes reais e distintas
Possui apenas uma raiz real (dupla)
Possui três raízes
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A soma das raízes de uma função quadrática é dada por:
c/a
-b/2a
-b/a
-Δ/4a
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se o coeficiente a for negativo, a parábola terá concavidade voltada para cima.
Verdadeiro
Falso
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A fórmula de Bhaskara é usada para encontrar as raízes de uma equação do 2º grau.
VERDADEIRO
FALSO
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A interseção do gráfico da função com o eixo Y ocorre no ponto de coordenadas (0, c).
VERDADEIRO
FALSO
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