Question

How would you describe the graph for the equation |x| <4?



a.) An open circle on 4 with a solid line drawn to an open circle on -4.
b.) A closed circle on 4 with a solid line drawn to a closed circle on -4.
c.) A closed circle on 4 with a solid line drawn to an open circle on -4.
d.) An open circle on 4 with a solid line drawn to a closed circle on -4.

Answer 1

Answer:

a.) An open circle on 4 with a solid line drawn to an open circle on -4.

Explanation:

Open circles are used for signs: < and >

Closed circles are used for signs: ≤ and ≥

Here in the given expression: |x| < 4

[<] sign is used so open circle is used

If |y| < a then -a < y < a

so here, -4 < x < 4

Both circles should be opened, drawn with a solid line from -4 to 4.