The vertex of this parabola is at (-2, 1). which of the following could be its equation?

a.
x = 4(y + 1)2 - 2

b.
y = 4(x - 2)2 - 1

c.
x = 4(y - 1)2 - 2

d.
y = 4(x - 2)2 + 1

Jessica is organizing a guided tour of the rain forest. the average profit per person that the touring company makes is given by the rational expression 18x+35/x, where x is the number of people going on the tour. what does the numerator of this rational expression represents?