Question

Identify the domain and range of each relation. Determine wheather the relation is a function.if not explain{(0’0.2)’(1,0.1)(1,1),(3,2)}R:D:

Answer 1

A mathematical function is a relationship that is established between two sets, through which each element of the first set is assigned a single element of the second set or none at all. The initial set or starting set is also called the domain; the final set or arrival set is called range.

The common way to denote a function f is:

f: A--->B

a---->f(a)

{(0,0.2),(1,0.1),(1,1),(3,2)}

D: {0, 1, 3}

R: {0.2, 0.1, 1, 2}

This is not a function because:

(1, 0.1) and (1, 1)