Apoet endowing animals, objects, or abstract ideas with human characteristics is using the figure of speech called

The most likely answer is personification. However, if said poet addresses such phenomena directly as to another human, or in a manner of dialogue, they use a type of personification known as anthropomorphism.

Alinear relationship would look like a straight line on the graph. it could have a positive negative or 0 slope. so it could be a line potentially going in any direction but it must be perfectly straight.