
Funções
Interactive Video
•
Mathematics
•
12th Grade
•
Practice Problem
•
Hard
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5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • Ungraded
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2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Observando a concavidade da parábola apresentada no gráfico, qual das seguintes funções quadráticas pode ser imediatamente descartada?
y = x² - 6x + 8
y = x² - 6x - 8
y = -x² + 6x + 8
y = x² + 6x - 8
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quais são as raízes da função quadrática representadas no gráfico?
0 e 8
2 e 4
2 e 8
4 e 8
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se a soma das raízes de uma função quadrática é 6 e o coeficiente 'a' (do termo x²) é 1, qual deve ser o coeficiente 'b' (do termo x) na forma y = ax² + bx + c?
6
-6
8
-8
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o valor do termo independente 'c' (o intercepto y) da função quadrática mostrada no gráfico?
2
4
6
8
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