Use the roster method to write each of the given sets. For some exercises you may need to consult a reference, such as the Internet or an encyclopedia. (Enter EMPTY for the empty set.)

The set of natural numbers x that satisfy x + 8 = 1

Answer is empty set.

Step-by-step explanation:

Here the given equation is x+8=1

on solving this equation, we subtract 8 both sides, we get

x+8 - 8 = 1-8

x = -7

here we can see that we have only one value of x which is - 7

now lets see the set of natural number

N = { 1,2,3,4,5 ... } here we can see that natural number starts from 1 that is it does not include negative number therefore - 7 is not natural number.

therefore answer for this equation as roster set will be empty set.