
Funções - 8º Ano
Authored by vera dias
Mathematics
8th Grade
Used 86+ times

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14 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Considera os pontos A e B de coordenadas (1, -5) e (-1, 1), respetivamente.
Qual das seguintes equações define uma reta paralela à reta AB?
y = 4x
y = -3x
y = -4x
y = 3x
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Considera os pontos A e B de coordenadas (1, -5) e (-1,1), respetivamente.
Qual das seguintes equações representa uma reta paralela à reta AB e que passa pelo ponto de coordenadas (1, 0)?
y = -3x - 3
y = 4x - 4
y = -4x + 4
y = -3x + 3
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Qual das seguintes equações define uma reta paralela à reta y = 2x + 1 e que passa no ponto de coordenadas (2, -1)?
y = -2x - 3
y = 2x - 1
y = 2x + 3
y = 2x - 5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das seguintes equações representa a reta que passa nos pontos de coordenadas (5, -1) e (5, 2)?
y = 2
x = 5
x = 1
y = -1
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Ao alugar um carro, o Miguel pagou de depósito 50 euros e por cada dia teve de pagar 35 euros.
Qual das expressões algébricas representa a função que traduz a situação descrita?
y = 35x
y = 50x + 35
y = 35
y = 35x + 50
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual das funções seguintes traduz uma situação de proporcionalidade direta?
y = 3x + 1
y = 4
y = - 7x
y = x2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
As funções representadas no referencial da figura são...
... quadráticas.
... lineares.
... constantes.
... nulas.
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