The formula Vw= f • \ describes the relationship between the speed of a wave (Vw), and it's frequency (f)and wavelength (\)
For example if a wave has a frequency of 128c and a wavelength of 5 m it would have a speed of 6 00 m/s
And one or two senators describe what would happen to the frequency of this wave if the wavelength is increased to 10 m but the speed stays the same at 600 m/s