Given the functions f(x) = x2 + 6x - 1 and h(x) = 2x2 - 4x + 3. What is the vertex for each?

a
(-3, -10) and (1, 9)

b
(-3, -28) and (-1, 5)

c
(-3, -10) and (1, 1)

d
(3, -20) and (-1, 9)