
Atividades de Múltipla Escolha - Função Quadrática (40 Questões)

Quiz
•
Other
•
10th Grade
•
Hard
Roberto Drummond
Used 1+ times
FREE Resource
40 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o gráfico da função f(x) = -x² + 4x - 3?
Uma parábola com concavidade para cima, vértice em (2, 1)
Uma parábola com concavidade para baixo, vértice em (2, 1)
Uma parábola com concavidade para cima, vértice em (4, 5)
Uma parábola com concavidade para baixo, vértice em (1, 2)
Uma parábola com concavidade para cima, vértice em (2, -1)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O valor máximo da função f(x) = -2x² + 8x - 3 ocorre em:
x = 2, f(x) = 5
x = 2, f(x) = 13
x = -2, f(x) = -13
x = 4, f(x) = 9
x = 1, f(x) = 3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A função f(x) = x² - 6x + 8 tem raízes:
x = 2 e x = 3
x = 2 e x = 4
x = 1 e x = 8
x = 3 e x = 6
x = 4 e x = 5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o valor do discriminante da função f(x) = 3x² - 6x + 2?
-12
0
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A função f(x) = x² + 4x + 5 possui:
Duas raízes reais
Uma raiz real
Nenhuma raiz real
Raízes opostas
Raízes iguais a zero
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A concavidade da função f(x) = -5x² + 3x - 1 é:
Para cima
Para baixo
Nula
Inexistente
Vertical
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O valor de x para o qual f(x) = 0 na equação x² - x - 6 = 0 é:
x = 3 ou x = -2
x = 2 ou x = -3
x = 1 ou x = 6
x = 6 ou x = -1
x = -2 ou x = -3
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