15 points! describe how the graph of y= x2 can be transformed to the graph of the given equation. y = (x - 8)^2 - 12 a) shift the graph of y = x2 left 8 units and then down 12 units. b) shift the graph of y = x2 right 8 units and then up 12 units. c) shift the graph of y = x2 down 8 units and then left 12 units. d) shift the graph of y = x2 right 8 units and then down 12 units.