Guitar amp line out to mixer

1. Can I connect guitar amp to mixer?
2. What is the line out on a guitar amp do?
3. Is Direct out the same as line out?

Can I connect guitar amp to mixer?

The most common way to plug a guitar amp into a mixer is through the use of a microphone, but you can plug it directly into a channel using the direct out as well.

What is the line out on a guitar amp do?

The ISO Line Out box is used to provide a transformer-isolated signal from any guitar amplifier speaker output jack. One common purpose is to provide a line level signal that feeds an effect processor.

Is Direct out the same as line out?

Functionally a line out, direct out, and DI out are the same thing for the same purpose. Some are balanced, some are +4db, some are -10db, and some are "cab voiced". They all allow you to run a signal to the mixing board and avoid needing a mic.