The following graph compares the length and weight of two types of sea animals.
1) If the two comparisons meet in the graph, calculate the rate of change of length with respect to weight in both categories. What do you infer from this?
2) Take any two points on the graphs f and g (say C and D on f and E and F on g other than A and B) and find the slopes of the two lines joining them. What have you observed about their slopes? Discuss.