
RECUPERAÇÃO - Funções
Mathematics
11th Grade
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
O valor que gastamos com o combustível do carro está em função da quantidade de litros colocados no tanque.
Sabendo que o preço do litro de gasolina é R$ 5,98 em um determinado posto, assinale a função que relaciona o valor a pagar "y" de acordo com a quantidade "x" de litros de gasolina colocados no tanque.
x = 5,98.y
y = 5,98.x
x = y + 5,98
y = x + 5,98
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Seja a função definida por f(x) = 3x + 1, o valor de f(2) é:
3
4
6
7
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
O valor da função f(x) = - x² + 1 para x = - 1 é:
0
2
- 1
- 2
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A função y = 5x é representada no plano cartesiano por uma reta:
paralela ao eixo x.
paralela ao eixo y.
que passa pela origem.
coincidente com o eixo x.
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
O zero da função y = 3x + 9 é:
3
6
- 3
- 6
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A representação gráfica da função y = - 3 é uma reta:
que intercepta os dois eixos
paralela ao eixo das ordenadas (eixo y).
perpendicular ao eixo das abcissas (eixo x).
perpendicular ao eixo das ordenadas (eixo y).
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A reta ilustrada no plano cartesiano representa a função:
y = 2x
y = x + 2
y = 2 - x
y = 2x + 2
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