Kaz's utility function is given by

D(x₁ , x₂)=9.9 x₁ + 5.2 x₂

baba's utility function is given by

L(x₁ , x₂)=x₁^5.2x₂^9.9

wherex_i denotes the quantity consumed of good i, i =1, 2.Compare Kaz's marginal rate of substitution (of good 1 in terms of good 2), MRS_D , with baba's marginal rate of substitution, MRS_L ,at the bundle where x₁ = 8.7 and x₂ = 3.1 by stating below the value of the ratioMRS_D / MRS_L