SOLUTION: Give an example of an integer that is not a natural number. Give an example of a real number that is not a rational number Please help me out on this problem Thanks

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Question 69484: Give an example of an integer that is not a natural number.
Give an example of a real number that is not a rational number
Please help me out on this problem
Thanks

Answer by jim_thompson5910(21667) About Me  (Show Source):
You can put this solution on YOUR website!
Natural numbers are numbers you would use to count things in the room, for example , and would be numbers like 1,2,3...etc. An integer is any whole number, so -2 is an integer but you wouldn't use it to count as a natural number.
The constant pi is a perfect example of an irrational number, a number that cannot be represented rationally (in other words fractions), since the number goes on forever. However, pi is still a real number, but it's certainly not rational. Hope this helps.