Question

What is a function?Give 4 examples​

Answer 1

Answer: This may help you

Explanation:

A function is a mapping from a set of inputs (the domain) to a set of possible outputs (the codomain). The definition of a function is based on a set of ordered pairs, where the first element in each pair is from the domain and the second is from the codomain. But, a metaphor that makes the idea of a function easier to understand is the function machine, where an input x from the domain X is fed into the machine and the machine spits out the element y=f(x) from the codomain Y. Below, the domain is visualized as a set of spheres and the codomain as a set of cubes, so that the function machine transforms spheres into cubes.

Answer 2

Answer:

A function is a mapping from a set of inputs (the domain) to a set of possible outputs (the codomain). The definition of a function is based on a set of ordered pairs, where the first element in each pair is from the domain and the second is from the codomain