Question

How do you write the set in roster form? In set builder notation? D is the set of whole numbers less than 3.
A. D = {0,1,2,3,4,5}; D = {x is a whole number, x < 3}
B. D = {0,1}; D = {x | x < 3}
C. D = {0,1,2}; D = {x | x is a whole number, x < 3}
D. D = {0,1,2,3,4,5,6,7}; D = {x < 3}

Answer 1

A roster is a list
Set builder notation is: {x|x.........}

Answer 2

in roster form:

D = {0,1,2,3}

in set-builder notation:

D = {x in N U {0} : x < 4}

Answer 3

Set-builder: {x|x is a whole number, x < 3}