Which is the equation of the parabola?

Step-by-step explanation:

The vertex form of a parabola is: y = a(x - h)² + k    where

NOTE: p is the distance from the vertex to the focus

The vertex (h, k) is (2, -3)

Insert those values into the vertex formula to get:

step-by-step explanation:

descending order means to order the polynomials from the term with the largest exponent to the term with the smallest exponent.  

therefore, the correct answer is d.