Question

Help!
use absolute value notation to describe the expression: the distance between x and 7 is at least 4

Answer 1

"the distance between x and 7"
This is written as \(
|x-7|
\) or as \(
|7-x|
\) whichever you prefer. You need to use absolute value to ensure you don't get a negative distance.

"is at least 4"
This is written as \(\dots \ge 4\) or \(4\le \dots\), again depending on preference.

Now you just have to combine the two.

Answer 2

Thanks a lot!