Quizizz - Revisão Função Quadrática
Quiz
•
Mathematics
•
9th Grade
•
Hard
Prof. Izabel
Used 59+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Analisando o gráfico de certa função quadrática f(x) = , podemos afirmar que:
a>0 (positivo); <0 (negativo)
a<0 (negativo); >0 (positivo)
a<0 (negativo); <0 (negativo)
a>0 (positivo); >0 (positivo)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O gráfico de uma função do 2o grau é uma:
reta
parábola
círculo
hipérbole
3.
MULTIPLE CHOICE QUESTION
30 sec • 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 + c
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Com o a positivo temos uma parábola com concavidade:
para baixo
para cima
uma reta
ondulada
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O gráfico da função corta a reta 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
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual dos gráficos pode representar uma função do tipo ?
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual dos gráficos pode ser o da função definida por ?
I
II
III
IV
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