13.07.2015 Views

Chapter 8 Notes

Chapter 8 Notes

Chapter 8 Notes

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Joint Variation• When an equation takes the form z = kxy it is called a jointvariation• “z varies jointly with x and y” or “z is jointly proportionalto x and y”• k is the constant of proportion or k is the constant ofproportionality• in a joint variation:z1z=2x y x y1122

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