To estimate gorilla populations, biologists count the total number of gorillas in a small section of their habitat. The total population of gorillas is directly proportional to the size of the habitat (in acres) polled.

a.Write an equation that describes the relation between the number of gorillas and the size of their habitat, using a proportionally constant k.

b.A biologist counted 6 gorillas in a 80-acre parcel of land in a nature preserve. Find the constant of variation k.