[tex] (x,\ y)\longrightarrow\ (2x+4,\ y)\\\\R(-3,\ -3)\to R'(2(-3)+4,\ -3)\to R'(-2,\ -3)\\\\Q(-1,\ -3)\to Q'(2(-1)+4,\ -3)\to Q'(2,\ -3)\\\\P(-2,\ 3)\to P'(2(-2)+4,\ 3)\to P'(0,\ 3) [/tex]
