Question

Y=x-5; domain = {4,6,8}

Answer 1

Range = {-1, 1, 3}

Explanation:

The question asks for the range.

The function given is

`y=x-5`

The domain is the set of 3 numbers:

Domain = {4,6,8}

We need to find the range.

First, the range is the set of all y-values for which the function is defined.

When we will be given the domain with a set of numbers, the range would be the numbers that we get when we evaluate the the function at those numbers.

So, we evaluate the function (y-values) at x = 4,6, and 8.

At x = 4:

`y=x-5\\y=4-5\\y=-1`

At x = 6:

`y=x-5\\y=6-5\\y=1`

At x = 8:

`y=x-5\\y=8-5\\y=3`

Thus, the range is:

Range = {-1, 1, 3}