
Função Quadrática
Authored by Arnoldo Neto
Mathematics
10th Grade
Used 2+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Qual é o formato de uma função de 2º grau?
y = ax2 + bx + c
y = ax + b
y = ax3 + bx + c
y = ax2 + bx2 + cx2
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
O gráfico de uma função do 2o grau é uma curva chamada de:
reta
parábola
elipse
hipérbole
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
a > 0, b > 0 e c > 0
a > 0, b = 0 e c >0
a < 0, b > 0 e c > 0
a > 0, b < 0 e c > 0
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
O gráfico da função "corta" o eixo x em dois pontos quando:
delta for maior que zero (positivo)
delta for menor que zero (negativo)
delta for igual a zero (nulo)
quando não existir o valor de delta
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Em relação ao gráfico da função quadrática, é correto afirmar:
O coeficiente a é positivo.
O coeficiente b vale 2.
A função tem duas raízes distintas.
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