A researcher estimated the population density of a plant species at different distances from a river bank.
They plotted their results on a graph.
Which of these statements describes the relationship between the plant density and the distance from the river bank?
Plant density∝distance from river bank\text{Plant density} \propto \text{distance from river bank}Plant density∝distance from river bank
Plant density=distance from river bank\text{Plant density} = \text{distance from river bank}Plant density=distance from river bank
Plant density>distance from river bank\text{Plant density} > \text{distance from river bank}Plant density>distance from river bank
Plant density∼distance from river bank\text{Plant density} \sim \text{distance from river bank}Plant density∼distance from river bank