So if you know how to find slope this is a pretty easy question to solve.
Sooo, to solve you would 2 pairs of #'s off the graph and subtract theM Like so; I will use the point (2,6) and (3,9). To subtract you are going to flip the values and subtract. 9-6=3 3-2=1 This was going to represented by a fraction but since 3/1=3 the slope is just going to be 3.
area=l*w=2*width*width=2*width^2 area+160=(2*width+1)*(width+1) A+160=2w^2+2w+w+1 A+160=2w^2+3w+1 putting value of a 2w^2+160=2w^2+3w+1 160=3w+1 w=53m l=106m