Quadrilateral with exactly one pair of parallel sides and at least one angle measuring 45 degrees

Marcus needs to rewrite f(x) = x2 + 6x + 4 in vertex form.

30 pts, will mark brainliestwhat is the period of the sinusoidal function? (picture 1)what is the minimum of the sinusoidal function? (picture2)what is the maximum of the sinusoidal function? (picture 3)

What is the sum of these mixed numbers 2 1/8 + 4 3/8