Ao calcular h(5) na função h(x) = 3x – 8, obtemos:
1EM Mat1 Mód07/08 Funções: a notação f(x)

Quiz
•
Mathematics
•
10th Grade
•
Medium
Sergio DaltosoJr
Used 7+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
h(5) = 7
h(5) = 23
h(5) = –23
h(7) = 5
2.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Resolvendo a equação R(x) = 17, sendo R(x) = 5x – 3, obtemos:
x = 12
x = 2
x = –3
x = 4
3.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
A raiz da função f(x) = 4x + 10 é
x = 2,5
x = –2,5
x = 2
x = –2
4.
MULTIPLE CHOICE QUESTION
2 mins • 3 pts
Considerando a função f(x) = 2x + 8, qual afirmação a seguir é FALSA?
f(3) = 14
f(x) = 18 se x = 5
x = -4 é raiz dessa função
f(1) ≠ 10
5.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Para que T(4) = 2 na função T(x) = 5x + k, o valor de k deve ser:
18
22
–18
–14
6.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Qual dos números a seguir pode ser raiz da função q(x) = x² – 10x + 24?
3
–2
2
4
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Se p(x) = x² + 5x – 6, então p(3) =
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