Describe how the graph of y = x^2 can be transformed to the graph of the given equation. y = (x - 2)^2 - 15 a. shift the graph of y = x2 left 2 units and then down 15 units. b. shift the graph of y = x2 down 2 units and then left 15 units. c. shift the graph of y = x2 right 2 units and then down 15 units. d. shift the graph of y = x2 right 2 units and then up 15 units.