Length increased by 2m, then new length is l + 2 Also breadth is decreased by 1m so new breadth is b - 1

Then, area (72)(k-1)

(l + 2)(b - 1) = lb

1b - 1 + 2b - 2 = 1b

l = 2b + 2 = 0

So, original length of the plot is 10m and its breadth is 6m.Taking measures of length on X-axis and measure of breadth on Y-axis, we get the graph