
Funções do Primeiro e Segundo Grau
Mathematics
11th Grade
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19 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Identifique os coeficientes da função f(x) = 3x² - 5x + 2.
2 (x²), -5 (x), 3 (constante)
3 (constante), -5 (x²), 2 (x)
-5 (x²), 3 (x), 2 (constante)
Os coeficientes são: 3 (x²), -5 (x), 2 (constante).
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o gráfico da função quadrática f(x) = x² - 4?
O gráfico é uma linha reta com inclinação positiva.
O gráfico tem vértice em (0, 0) e interceptos em (-4, 0) e (4, 0).
O gráfico da função é uma parábola com vértice em (0, -4) e interceptos em (-2, 0) e (2, 0).
O gráfico é uma parábola voltada para baixo com vértice em (0, 4).
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Como você aplicaria a função do primeiro grau em um problema de custo?
C(x) = ax^2 + b para calcular o custo total.
Utilizando a função C(x) = a + bx para calcular o custo total.
C(x) = a * b + x para calcular o custo total.
C(x) = a - bx para determinar o custo.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Determine a função do primeiro grau que passa pelos pontos (1, 2) e (3, 4).
y = x + 1
y = 2x + 1
y = 3x + 2
y = x - 1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o valor máximo da função f(x) = -2x² + 8x - 3?
7
6
4
5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o valor mínimo da função f(x) = 4x² - 16x + 12?
4
0
-2
-4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Identifique os coeficientes da função linear f(x) = 7x - 1.
m = 7, b = -1
m = 5, b = 2
m = 10, b = -1
m = 7, b = 0
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