A school sells T-shirts to promote school spirit. The school's profit is given by the function P(x) = 8x – 150, where x is the number of T-shirts sold. During the play-offs, the school increases the price of the T-shirts. The school's profit during the play-offs is given by the function Q(x) = 16x - 200,
where x is the number of T-shirts sold. Describe the transformations from the graph of P to the graph of Q.