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Jun 25, 2014 - Explore Krystle Marie's board "Direct Variation", followed by 131 people on Pinterest. See more ideas about Direct variation, Teaching math, 8th grade math.

www.chilimath.com/lessons/intermediate-algebra/direct-variation

Direct Variation (also known as Direct Proportion) The concept of direct variation is summarized by the equation below. We say that varies directly with if is expressed as the product of some constant number and . Cases of Direct Variation However, the value of can’t equal zero, i.e. . Case 1: ( is positive) If increases then … Direct Variation Read More »

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This section covers: Direct or Proportional Variation Inverse or Indirect Variation Joint and Combined Variation Partial Variation More Practice When you start studying algebra, you will also study how two (or more) variables can relate to each other specifically. The cases you’ll study are: Direct Variation, where one variable is a constant multiple of another … Direct, Inverse, Joint and ...

www.chilimath.com/lessons/intermediate-algebra/inverse-variation

Inverse Variation (also known as Inverse Proportion) The concept of inverse variation is summarized by the equation below. Key Ideas of Inverse Variation We say that varies inversely with if is expressed as the product of some constant number and the reciprocal of . However, the value of can’t equal zero, i.e. . Isolating on one side, it … Inverse Variation Read More »

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Direct variation is a relationship between two variables that describes how the two variables relate to one another. This type of variation can be represented using a direct variation equation.

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Direct variation is a special kind of linear equation. In direct variation, two quantities, such as time and distance, or hours and pay, increase or decrease at a consistent rate.

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What's the Direct Variation or Direct Proportionality Formula? Ever heard of two things being directly proportional? Well, a good example is speed and distance. The bigger your speed, the farther you'll go over a given time period. So as one variable goes up, the other goes up too, and that's the idea of direct proportionality.

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A direct variation equation ALWAYS passes through (0,0)--the origin. k. k is the constant of variation. (the same as slope) Write a direct variation equation for the following: y = 3 when x = 7. y = kx 3 = 7k Solve for k. Divide both sides by 7. k = 3/7. Write your equation. Plug in 3/7 for k.

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