:D plz help with my math i dont understand this

Match each graph with the correct equation from the equation bank. not all equations will be usef

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

The architect's side view drawing of a saltbox-style house shows a post that supports the roof ridge. the support post is 8 ft tall. the distance from the front of the house to the support post is less than the distance from the post to the back of the house. how far from the front of the house is the support post positioned?