Final answer:
The photographs of Lange's "Migrant Mother" can affect the understanding of the past as they capture the pain and suffering of people during the Great Depression and have become iconic representations of that period.
Step-by-step explanation:
The photographs of Lange's "Migrant Mother" can indeed affect your understanding of it as evidence of the past.
Firstly, the photographs capture the pain and suffering of the people during the Great Depression, providing a visual representation of the hardships faced by Americans at that time.
Secondly, these photographs have become iconic and are recognized worldwide, making them a powerful tool in educating people about the history and struggles of the past.