ATIVIDADE DA 10ª SEMANA DO 3º TRIMESTRE - 2 B
Quiz
•
Financial Education
•
12th Grade
•
Hard
Paula Irene
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10 questions
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1.
MULTIPLE CHOICE QUESTION
10 mins • 3 pts
1) A função afim tal que f(1) = 3 e f(2) = -1 é:
a)f(x) = -4x + 7
b)f(x) = x + 3
c)f(x) = 2x – 1
d)f(x) = 3x
2.
MULTIPLE CHOICE QUESTION
10 mins • 3 pts
2. Seja f(x) = ax + b. Sabendo que f(1) = 5, qual o valor de a + b?
a) 1
b) 5
c) 3
d) 4
3.
MULTIPLE CHOICE QUESTION
10 mins • 3 pts
3) Sabendo que em uma função do primeiro grau f(1) = -10 e f(-1) = 10, qual o valor de f(2)?
a)-2
b)2
c)-10
d)-20
4.
MULTIPLE CHOICE QUESTION
10 mins • 3 pts
4. O gráfico de uma função é uma reta. Se nesta função f(2) = k e f(7) = k, (k real), f(9) vale:
a) 2
b) 7
c) k
d) 2k
5.
MULTIPLE CHOICE QUESTION
10 mins • 3 pts
5) Um possível esboço do gráfico da função f(x) = 2x – 6 é?
a)A
b)B
c)C
d)D
e) E
6.
MULTIPLE CHOICE QUESTION
10 mins • 3 pts
6) Qual a função que representa o gráfico:
a) y = – 4x + 8
b) y = 8x – 4
c) y = 2x + 8
d) y = –2x + 8
7.
MULTIPLE CHOICE QUESTION
10 mins • 3 pts
7. Se 2 é zero de f(x) = ax – 6, então é possível de se saber que a é:
a)1
b)2
c)3
d)4
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