Find the slope of the hill

Given: ab ≅ bc and ao ≅ oc ok − angle bisector of ∠boc find: m∠aok

Jack has a rectangular piece of land, the area of which is represented by a1 = 9.5l. his brother has a different rectangular piece of land, the area of which is represented by a2 = l(14 − l). let a represent the area in square meters and l represent the length in meters of the pieces of land. the two equations plotted on a graph meet at a point as shown in the image

If f(x)=1/x and g(x)=x+4 which of the following is the graph