Are speed and frequency directly proportional?

The relationship of the speed of sound, its frequency, and wavelength is the same as for all waves: v w = fλ , where vw is the speed of sound, f is its frequency, and λ is its wavelength.

Why is the wavelength of an em wave inversely proportional to its frequency? – Quora. The wavelength of any wave with a constant speed is inversely proportional to its frequency , because as something vibrates more frequently, there is less time between one vibration and the next.

That means speed is directly proportional to frequency . When frequency increases, speed increases and vice versa.