integer, rational number, real number

Algebra
Tutor: None Selected Time limit: 1 Day

to which sets of numbers does the number belong? 

-17

Sep 14th, 2015

Thank you for the opportunity to help you with your question!

An integer is simply a whole number (no fractions nor decimals).  It's an integer.

A rational number is one that can be written as a simple fraction: -17=-17/1.  It's a rational number.

A real number is any point on an infinitely long number line.  It's a real number.

-17 is an integer, a rational number, and real number

Please let me know if you need any clarification. I'm always happy to answer your questions.
Sep 14th, 2015

i was pretty sure those were all correct!

A. integer, rational, and real

B. whole, integer, rational, real

C. whole, integer, real

D. raitonal, real 

which is it? A?

Sep 14th, 2015

It's a whole number as well, since it's not a fraction or decimal. Answer is B.  Let me know if you have any questions :)

Sep 14th, 2015

sooo..a whole number can be negative or positive? because i hear a whole is sometimes called a natural number which is positive integers and 0. now im confused:/

Sep 14th, 2015

Hey, I apologize, some people consider negative numbers as whole numbers.  But I'm assuming this is what you're teacher taught you:


Whole numbers: 0,1,2,3,4,5......  So -17 would not be a whole number then.

Natural numbers: 1,2,3,4,5..... So -17 would not be a natural number then.

Integers: ....-2,-1,0,1,2.....


Sep 14th, 2015

gotcha! so whole numbers are positive numbers AND 0? or is 0 not included?

Sep 14th, 2015

nevermind i see 0 is a whole but not natural, correct?

Sep 14th, 2015

Whole numbers are positive and include 0.  Natural numbers are positive and  do not include 0.

Sep 14th, 2015

natural numbers cant be decimals or fractions?

Sep 14th, 2015

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