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3 Types of Variation

3 Types of Variation. The Constant of Variation. The relationship two variables have is defined by K (the constant of the variation) K is the factor that holds variables together Always solve for K first. Direct. Both Variables increase Ex- The cost of pizza varies directly to its size

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3 Types of Variation

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  1. 3 Types of Variation

  2. The Constant of Variation • The relationship two variables have is defined by K (the constant of the variation) • K is the factor that holds variables together • Always solve for K first

  3. Direct • Both Variables increase • Ex- The cost of pizza varies directly to its size • Equation: Y=kx

  4. Inverse • One variable decreases while the other increases • The availability of a product varies inversely with its cost • Equation: Y=K/x

  5. Joint • Contains more than two variables “Describes two different direct variations” • This interest earned on your savings account varies jointly with the amount you have and the time left in the bank • Equation: Y=kxz

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