
Sprint Final Saeb - 3° AB
Authored by JEAN SILVEIRA
Mathematics
12th Grade
Used 1+ times

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37 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Analise o gráfico de uma função do primeiro grau. A função em questão é:
y = −2x + 6.
y = 3x − 2.
y = 2x − 3.
y = −3x + 6.
y = 6x + 3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Em um mês, uma loja de eletrônicos começa a obter lucro já na primeira semana. O gráfico representa o lucro (L) dessa loja desde o início do mês até o dia 20. Mas esse comportamento se estende até o último dia, o dia 30. A representação algébrica do lucro (L) em função do tempo (t) é:
L(t) = 20t + 3 000
L(t) = 20t + 4 000
L(t) = 200t
L(t) = 200t − 1 000
L(t) = 200t + 3 000
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Observe o gráfico abaixo. A equação da reta que passa pelos pontos P(2, 5) e Q (−1, −1) é:
2x − y + 1 = 0
2x + 3y + 1 = 0
2x − y + 3 = 0
6x − y − 1 = 0
2x − y −1 = 0
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Uma reta tem coeficiente angular igual a 1/2 e passa pelo ponto P (1, 0). A equação dessa reta é:
y = 1/2 x − 1/2
y = −1/2 x + 1
y = −1/2 x + 1/2
y = x − 1/2
y = x + 1/2
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Na figura o ponto P é a interseção das retas r e s. As equações de r e s são respectivamente y = x − 1 e y = −2x + 5. As coordenadas do ponto P(x, y) são:
(2,1)
(1,2)
(1,0)
(0,5)
(2,2)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Considere a representação geométrica abaixo. Qual sistema de equações do 1º grau com duas incógnitas está relacionado a essa representação geométrica?
x + y = 4; x + y = 1
x + y = 5; −x + y = 3
5x + 5y = 4; 3x − 3y = 1
x + y = 5; x − y = 3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
João construiu, utilizando um programa de computador, a circunferência de centro P, conforme representado no plano cartesiano abaixo. Qual é a representação algébrica dessa circunferência construída por João?
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