
Revisão Função do segundo grau
Authored by Lais Ciriaco
Mathematics
9th - 12th Grade
Used 2+ times

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16 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:
reta
parábola
elipse
hipérbole
circunferência
3.
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
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
Toda função do segundo grau, tem duas raízes?
Verdade
Falso
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Quais os coeficientes?
a = 6
b = 2
c = 1
a=9
b= - 6
c = 1
a= 9
b= 6
c= 1
a= 2
b= 6
c= 1
7.
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
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