(a) Write in words how to read the following out loud {n ? Z | n is a factor of 9}. ;(b) Use the set-roster notation to indicate the elements in the set.

Question

What will be an ideal response?

Answer 1

(a) The set of all integers n such that n is a factor of 9.
Or: The set of all elements n in Z such that n is a factor of 9.
Or: The set of all elements n in the set of all integers such that n is a factor of 9.
(b) {1; 3; 9}