edmentum Guided Notes Name: Date: Variation Equations Objective In this lesson, you will represent and solve problems involving direct and inverse variation. Direct Variation . when the of two variables is constant and 0 is paired with . may be represented by an equation in either the formy = kx or = = k , where k = 0 The constant, k, is called the constant of _ . If y varies directly as an nth _ of x, then y = kx" or = = k. Question Can these aspects of the Dylan's vacation can be expected to vary directly? Aspect Vary Directly? the gallons of gasoline used and the number of miles driven (Driving twice as many miles will use twice as much gas.) the volume of a circular hotel swimming pool and the square of its radius (In the equation for the volume of a cylinder, V = ahr, doubling the value Yes of ~ will the value of V