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ResourceSpotlight
In this activity, students will explore how the constant of variation, k, affects the graph of direct and inverse variations. Students will apply what they have learned to real-world problems. As an extension or homework, students determine the type of variation of the given graph and then calculate the constant of variation.
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Texas Instruments, Inc.
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Gives step by step descriptions on how to simplify different types of rational expressions.
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James Brennan
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A helpful scientific calculator that runs in your web browser window.
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Holt Online Learning
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Excellent site showing examples of algebra, trig, calculus, differential equations, and linear algebra.
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Paul's Online Math Notes
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Quiz on Rational Expressions, Quadratic Equations, and Roots
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SOS Math
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Algebra of Rational Expressions with rules for multiplication, addition and subtraction, reciprocals and cancellation of common factors. Practice examples are included.
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Interactive Algebra Review
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Step-by-step solutions to odd-numbered problems from dozens of precalculus textbooks.
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Hotmath
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A discussion of the easier way to solve such equations.
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Ask Dr. Math
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