Acute triangles are similar. always sometimes never

Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?

Factor the polynomial. b^2 + 4b + 4

Pls never taught i’m really confused and i rlly need