What is a verb and a adverb give me the correct answer

The best way to describe this is that a verb is an action or a linking verb.

Ex. I ran to the store. He is the leader.

An adverb modifies or explains a verb.

Ex. He ran quickly down the stairs.

A lot of times, the adverbs end in -ly.

. a function is a relation in which each input has only one output. in the relation , y is a function of x, because for each input x (1, 2, 3, or 0), there is only one output y. x is not a function of y, because the input y = 3 has multiple outputs: x = 1 and x = 2.