Suppose that y varies inversely with x. write an equation for the inverse variation. y = 4 when x = 6

Inverse Variation. Since k is constant, we can find k given any point by multiplying the x-coordinate by the y-coordinate. For example, if y varies inversely as x , and x= 5 when y = 2 , then the constant of variation is k = xy = 5(2) = 10 . Thus, theequation describing this inverse variation is xy = 10 or y = .