Matlab required!

An ion of mass M moving at speed 2V collides elastically with an ion of mass Q moving at speed V in the opposite direction. Find the final speeds of each ion after the collision. If V=9 m/s and M=5.6x10-28 kg, make a plot of the speeds of each ion as a function of the mass of Q where Q is in the range 2.0x10-28 kg to 12.0x10-28 kg (note, in most computer languages like Matlab you write large or small numbers in scientific notation like 5.6e-28 or 5.6e+28