Answer:
decrease : is unchanged
Explanation:
Suppose Jon likes to eat both the pizza and hamburgers . As John consumes more pizza and holds steady his consumption to hamburgers , the marginal utility of a piece of pizza decreases and the marginal utility of a hamburger is unchanged .
Here the law of diminishing marginal utility is apply .
Law of marginal utility states that as a person consumes more and more unit of a commodity , then marginal utility derived from every additional unit must be decline or decrease .
Here John is consuming more and more pieces of pizza so marginal utility or pizza is decreasing.
Law of diminishing marginal utility has some assumption they are :