Question

Write the set A = {x: x is an integer, -1 ≤ x < 4} in Roster form.

Answer 1

Answer:

A = {x: x is an integer, -1 ≤ x < 4}

Roster form,

A={-1,0,1,2,3}

Step-by-step explanation:

Answer 2

A = {-1, 0, 1, 2, 3}

Given:

Set A = {x: x is an integer, -1 ≤ x < 4}

To Find:

The set A = {x: x is an integer, -1 ≤ x < 4} in Roster form.

Solution:

• In roster form, the elements of a set are represented in a row surrounded by curly brackets.
• If the set contains more than one element then consecutive elements are separated by commas.

• For example, if B is the set of the first 10 natural numbers so it can be represented by: B = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}.

In the given set,

Set A = {x: x is an integer, -1 ≤ x < 4}

There are 4 integers between -1 and 4. They are 0,1,2,3. Here, we need to include -1 too as given in the set.

Hence, the roster form of set A is A = {-1, 0, 1, 2, 3}.