Economics

There are two goods x and y. Milton preferences for bundles of x and y can be described as follows: Between any two bundles, Milton prefers the bundle that has more x. If two bundles have the same amount of x, he prefers the bundle that has more y. (Obviously, bundles with the same amount of x and y are the same bundle).

How does indifference curve look like and how to prove this satisfy completeness assumpton.