Sketch a generic curve for hemoglobin and myoglobin on a graph

Sketch a generic curve for hemoglobin and myoglobin on a graph of ï' vs. [L]. What does the shape of the hemoglobin curve indicate about the nature of hemoglobin binding? (If you are unable to use a drawing program or don't have access to a scanner to scan in your answers using a hand drawn graph, simply describe the shape of the curve).