![]() Real numbers can also be described as all the numbers that are either rational or irrational. So, even though the number after the decimal never ends, they can still be plotted on the number line. Strangely enough, numbers such as √2 (the square root of 2, the value of which is 1.14142.) and π (3.1415.) can be plotted on a number line as well, even though they are nonterminating decimal numbers. The numbers 27, -198.3, 0, 32/9 and 5 billion are all real numbers. Any number that can be plotted on this number line is a real number. ![]() ![]() Real numbers are based on the concept on the number line: the positive numbers sitting to the right of zero, and the negative numbers sitting to the left of zero. Real numbers are basically all the numbers you could think of if somebody told you to think of a number.
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