Engenharia

Analise as afirma&ccedil;&otilde;es abaixo: 
 
I - O contradom&iacute;nio da fun&ccedil;&atilde;o

<img alt="f colon straight natural numbers rightwards arrow straight real numbers" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»f«/mi»«mo»:«/mo»«mi mathvariant=¨normal¨»§#8469;«/mi»«mo»§#8594;«/mo»«mi mathvariant=¨normal¨»§#8477;«/mi»«/math»" src="https://cdn.mesalva.com/uploads/cache/3a232ce4415da9ce78f62edd98540427.png" />

cont&eacute;m o conjunto dos n&uacute;meros inteiros.

II - O conjunto imagem da fun&ccedil;&atilde;o

<img alt="f colon straight real numbers rightwards arrow straight real numbers comma space f open parentheses x close parentheses equals x plus 1" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»f«/mi»«mo»:«/mo»«mi mathvariant=¨normal¨»§#8477;«/mi»«mo»§#8594;«/mo»«mi mathvariant=¨normal¨»§#8477;«/mi»«mo»,«/mo»«mo»§#160;«/mo»«mi»f«/mi»«mfenced»«mi»x«/mi»«/mfenced»«mo»=«/mo»«mi»x«/mi»«mo»+«/mo»«mn»1«/mn»«/math»" src="https://cdn.mesalva.com/uploads/cache/3cecc0f33e6a5aead0cac48e36356be3.png" />

tem o mesmo tamanho que o dom&iacute;nio dessa fun&ccedil;&atilde;o.

III - O dom&iacute;nio da fun&ccedil;&atilde;o

&nbsp;<img alt="f colon straight integer numbers rightwards arrow straight real numbers" class="Wirisformula" data-mathml="«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»f«/mi»«mo»:«/mo»«mi mathvariant=¨normal¨»§#8484;«/mi»«mo»§#8594;«/mo»«mi mathvariant=¨normal¨»§#8477;«/mi»«/math»" src="https://cdn.mesalva.com/uploads/cache/a75eccb9b356dc5d583a9db9ce86993d.png" />&nbsp;

cont&eacute;m o conjunto dos n&uacute;meros racionais.

Quais est&atilde;o corretas?

Questão

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