

9° ANO 3° BIMESTRE
Interactive Video
•
Mathematics
•
9th Grade
•
Practice Problem
•
Hard
Ericson Thaines
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que determina a concavidade da parábola de uma função quadrática?
O sinal do coeficiente 'a'.
O valor do discriminante (delta).
O sinal do coeficiente 'b'.
O valor do termo constante 'c'.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual coordenada do vértice de uma função quadrática representa o valor máximo ou mínimo da função?
A coordenada x do vértice (x_v).
A coordenada y do vértice (y_v).
O discriminante (delta).
O coeficiente 'a'.
3.
MULTIPLE CHOICE QUESTION
30 sec • Ungraded
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4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o valor mínimo da função y = x^2 - 3x + 2?
1
-1/4
2
0
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o ponto extremo (máximo ou mínimo) da função f(x) = x^2 - 6x + 8?
Máximo (3, -1)
Mínimo (-3, 1)
Máximo (3, 1)
Mínimo (3, -1)
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