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What is a Rational Function?

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❶The Real Number System.

Using Rational Numbers

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Simplifying Rational Expressions
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Integers are rational numbers because any integer can be written as a fraction by putting it over one. For example, 5/1 = 5 and -9/1 = This even works with zero, since 0/1 = 0.

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The number 2 is a rational number that can represented by 2/1, and the number 3 is a rational number, represented by 3/1, Between the 2 and the 3 is 2 1/2, between the 2 and the 2 1/2 is 2 1/4, between 2 .

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So then, what is a rational function? A rational function is a polynomial function divided by another polynomial function. Here is a small list of what they look like: \(f(x) = \frac{x^3 - 2x + 3}{3x - 1}\) \(y = \frac{x^2 - 3x - 2}{3x - 2}\) The general form for rational functions looks like this: f(x) = h(x)/g(x). Homework resources in Rational Numbers - Algebra - Math Military Families The official provider of online tutoring and homework help to the Department of Defense.

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A rational number can be a natural number, decimal number, whole number, integer, mixed number or a fraction. Examples: 7 is a rational number as it can be written as the fraction 7/1. Simplifying Rational Expressions with examples, solutions and exercises. Site map; Math Tests; Math Lessons; Plugging these numbers into the quadratic formula we get: We then have: More help with rational expressions at