Use symmetry to graph the inverse of the function.
5/6 is a larger fraction, so i believe that this is the correct answer
they have the same angles.
in order for two triangles where you know the side lengths to be congruent, their sides must be in the same ratio at all times. if this s not satisfied, they are not similar. this means that kj / rs = kl / ts = jl / rt, or 15 / 12 = 20 / 16 = 25 / 20, or 5/4 = 5/4 = 5/4. this means that the two triangles are similar.
finally, this implies that they have the same angles.
the answer is a (-12-2)