Question

What is the range of this function?

-1------->2

3------->6

5------->8

Answer 1

The range is the set of all the outputs the function can return, given all the possible inputs you can feed it with.

So, if try all possible inputs (i.e. -1, 3 and 5), the outputs are 2, 6 and 8.

So, the range is the set
`R = \{2, 6, 8\}`