A biologist recorded 6 snakes on 28 acres in one area and 10 snakes on 35 acres in another area. Find a linear equation that models the number of snakes in x acres.

(28,6),(35,10) are two points.

Slope m=(10-6)/(35-28).

=4/7.

y-6=4/7(x-28).

y=4x/7-112/7+6.

=4x/7-10.