Which statements about the graph of the function f(x) = –x2 – 4x + 2 are true?

Math it's appreciated. (picture provided)

Marquise has 200 meters of fencing to build a rectangular garden. the garden's area (in square meters) as a function of the garden's width w w (in meters) is modeled by: a ( w ) = − w 2 + 1 0 0 w a(w)=−w 2 +100w what side width will produce the maximum garden area? meters

Identify the number as a rational or irrational.explai. 291.87