Question

Describe all numbers x that are at a distance of 4 from the number 9. Express this using absolute value notation.

Answer 1

|x - 9| = 4

Explanation:

All numbers x that are at a distance of 4 fro the number 9

Given two numbers a and B, the absolute distance between them is written as :

|a - b| = c

Hence all numbers x at distance of x from 9

|x - 9| = 4

x - 9