The purpose of an adjective is to explain a noun in depth. It indicates the size of a particular noun, size, color etc. For example: lorry. Now we do not know what color or size the lorry is. So, to clarify the noun, we add adjectives to help describe it.
</span>↔ A huge red lorry. <span> Huge and red are adjectives.
The response should indicate an awareness that a formal interpretation would focus on the structure, literary elements, and devices in the poem, while a biographical interpretation would focus on the author's life and movitations.