Name: Pre-Algebra 33 - Real Numbers @MyWhyU
Uploaded: 2012-02-23T01:29:31-0400
Duration: 8 min 17 s
Description: There are an infinite number of rational numbers, but there are infinitely more irrational numbers. Neither type of number can represent every type of numeric quantity. By combining the rational and irrational numbers into the real numbers, a continuum of numbers is created which can represent any quantity in the real world.

MyWhyU | Algebra 10 - The Cartesian Coordinate System @MyWhyU | Uploaded 11 years ago | Updated 5 hours ago
The Cartesian coordinate system, formed from the Cartesian product of the real number line with itself, allows algebraic equations to be visualized as geometric shapes in two or three dimensions.

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