SOLUTION: What kind of real number is -12 and how is it classified? I've tried answering it, but I don't understand the definitions for real numbers and I'm really confused on how to answe

Algebra ->  Real-numbers -> SOLUTION: What kind of real number is -12 and how is it classified? I've tried answering it, but I don't understand the definitions for real numbers and I'm really confused on how to answe      Log On


   

Question 897291: What kind of real number is -12 and how is it classified?
I've tried answering it, but I don't understand the definitions for real numbers and I'm really confused on how to answer this.
Found 2 solutions by jim_thompson5910, josgarithmetic:
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
-12 is an integer since it is a number without any fractional/decimal parts to it.

It is also a rational number since -12 = -12/1. We can express -12 as a fraction of integers.

-12 is also a real number

So far in your math course and previous courses, everything you've encountered is a real number. Any decimal number or fraction or square root of a positive number (etc etc) is a real number.

You'll learn later on there are things called imaginary numbers or complex numbers which aren't real numbers

http://www.mathsisfun.com/numbers/real-numbers.html

There are other types of numbers that go beyond the scope of your course, but you may learn about them later on in future math classes.

Answer by josgarithmetic(39613) About Me  (Show Source):
You can put this solution on YOUR website!
Best way here is, tell what classification you gave for -12, and what was your reasoning?

Are you studying sets and subsets of numbers?