Need help on this one please

Which expression gives the area of the triangle shown below

Type the correct answer in each box. spell all words correctly. a sequence of transformations maps ∆abc onto ∆a″b″c″. the type of transformation that maps ∆abc onto ∆a′b′c′ is a . when ∆a′b′c′ is reflected across the line x = -2 to form ∆a″b″c″, vertex of ∆a″b″c″ will have the same coordinates as b′.

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 9 + 12x + 4x^2