One of the important distinctions between various types of deductions that we examined was the distinction between “for AGI” and “from AGI” deductions. Explain how the names for these two types of deductions developed, as well as the fundamental differences between the two types of deductions and the general types of
Deductions that fall within each category.

This is an assignment question

Look at the explanation of a 1040. It will tell you exactly what AGI is and how it is calculated.

This is clearly a homework question which we cannot answer.