Sis needs with problem 3 i really don't get it or don't remember how to do it?

What are the domain and range of the functiony = 2(x - 3)2 + 4?

To describe a sequence of transformations that maps triangle abc onto triangle a"b"c", a student starts with a reflection over the x-axis.how should the student complete the sequence of transformations to map triangle abc onto triangle a"b"c"? plz

Which equation represents a direct linear variationa. y=x2b. y=2/5xc. y=1/xd. y=x+3