Does increasing the frequency of a wave also increase its wavelength? If not, how are these quantities related?

Question

high frequency. low wavelength

That answer may be confusing. A high frequency has a short wavelength; i.e., 14 MHz is about 40 meters.
28 MHz is abouat 10 meters.
50 mHz is about 6 meters. So as the frequency goes up, the wavelength goes down.