Question

Graph −4 < x < 2 on the number line. Write −4 < x < 2 in interval notation.

Answer 1

To graph the inequality, we need to take the following steps:

0. Draw a number line.

,

1. Draw circles over -4 and 2; in this case the circles are hollow since the inequality only has exact signs.

,

2. Join them with a straight line.

With this in mind the graph of the inequality is:

The inequality is written in interval notation as:

`(-4,2)`