Which form of the adverb is underlined in the sentence?

selena smiles more brightly than she did yesterday.

a.
superlative

b.
comparative

c.
positive

Selena smiles more brightly than she did yesterday.

"More brightly" is a comparative because it's comparing her smile today and yesterday. 

The correct answer is "B." 

Idon't see any graph, however the graph of the function : f(x) = x²-2x+3 is a parabola: 1) open upward (since a> 0)2) it intersects y-axis in 3 (y=3)3) its axis of symmetry is x = +1 ( -b/2a)4) it's minimum is y = -2, so its vertex is (1,-2)5) it doesn't intersect the x-axis since discriminant < 0 

It is sometimes