Question

Write the interval x as an i inequality
and using interval notation.

Answer 1

1 < x < 3

(1 , 3)

Explanation:

We have been provided with a set that is

x

We have to write it in both as an inequality and also in the form of interval notation.

The inequality can be found easily by just looking at the given set. It states that the set contains x, such that x is greater than 1 and x is smaller than 3, so the inequality can be written as:

1 < x < 3

To write in interval notation, we use brackets, As both 1 and 3 are not included, we'll use round brackets to show the interval.

(1 , 3)