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Intervalos de números reais

Authored by Ana Cebola

Mathematics

9th Grade

Used 156+ times

Intervalos de números reais
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 Como representas  A={xR: x>5} \ A=\left\{x\in R:\ x>5\right\}\   na forma de intervalo?

]- \infty  , 5[

]- \infty  , 5]

[5,+ \infty  [

]5,+ \infty  [

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Como representas  B={xR: 2x<6} \ B=\left\{x\in R:\ 2\le x<6\right\}\   
  na forma de intervalo?

[2,6[

[2,6]

]2,6[

]2,6]

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Como é que se representa o intervalo [4, +  \infty  [ em compreensão?

 {xR: x>4}\left\{x\in R:\ x>4\right\}  

 {xR: x4}\left\{x\in R:\ x\ge4\right\}  

 {xR: x<4}\left\{x\in R:\ x<4\right\}  

 {xR: x4}\left\{x\in R:\ x\le4\right\}  

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Na seguinte imagem está representado um certo de subconjunto D de números Reais. Como se representa na forma de intervalo?

[-1,3]

]-1,3]

[-1,3[

]-1,3[

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Como se representa por uma condição o conjunto representado na seguinte imagem?

{xR: x<1}\left\{x\in R:\ x<-1\right\}

{xR: x1}\left\{x\in R:\ x\ge-1\right\}

{xR: x>1}\left\{x\in R:\ x>-1\right\}

{xR: x1}\left\{x\in R:\ x\le-1\right\}

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Na reta real o conjunto A é representado por:

Media Image
Media Image
Media Image
Media Image

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Na reta real o conjunto B é representado por:

Media Image
Media Image
Media Image
Media Image

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