1EM Mat1 Mód07/08 Funções: a notação f(x)

1EM Mat1 Mód07/08 Funções: a notação f(x)

10th Grade

10 Qs

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1EM Mat1 Mód07/08 Funções: a notação f(x)

1EM Mat1 Mód07/08 Funções: a notação f(x)

Assessment

Quiz

Mathematics

10th Grade

Medium

Created by

Sergio DaltosoJr

Used 7+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Ao calcular h(5) na função h(x) = 3x – 8, obtemos:

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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