Function of the form,
have the shown variation. All the curves pass through the point (1, 1). For n > 1 the graph lies above the rectangular hyperbola
(n =1) in the region
0 < x < 1 and then lies below it in the region x > 1. For 0 < n < 1 the graph first lies below the hyperbola in the region 0 < x < 1 and then lies above the hyperbola in the region x > 1.