Which transformations of the graph of ƒ(x) = 3 x result in the graph of ƒ(x) = 3 • 3 -2x? horizontal dilation by 2 and vertical dilation by 3. horizontal dilation by 0.5, vertical dilation by 3, reflection over the x-axis. vertical dilation by 2, horizontal dilation by 3, reflection over the x-axis and y-axis. horizontal dilation by 0.5, vertical dilation by 3, reflection over the y-axis.