What prediction does the rate law in Eq. 9.18 make about how the rate of the reaction

Question:

What prediction does the rate law in Eq. 9.18 make about how the rate of the reaction changes as the reactants D and E are converted into F over time? Does the rate increase, decrease, or stay the same? Explain. Use your answer to sketch a plot of the concentrations of starting materials and products against time.