The marginal rate of transformation of y for x represents Naim 21:41 Microeconomic Theory Chapter 4 The marginal rate of transformation of y for x represents A) the slope of the budget constraint. B) the rate at which the consumer must give up y to get one more x. C) -Px/Py. D) All of the above. Answer: All of the above. Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+