A Bode plot displays the gain and oscillation phase of a frequency response against a logarithmic frequency axis. Gain is often shown as in decibels; phase can use degrees or radians. The first-order low-pass filter loses approximately decibels per factor of ten in angular frequency well above its corner. [ref]
https://www.ocw.mit.edu/courses/2-004-dynamics-and-control-ii-spring-2008/2a0a97261561177bf1a91b07202bb09a_lecture_32.pdf. Rowell, lecture 32, section 2: logarithmic plots
A Bode plot is a graphical representation used in engineering and control systems to analyze the frequency response of a linear time-invariant (LTI) system. It consists of two plots: one for magnitude (or gain) and one for phase, both as functions of frequency. Bode plots are particularly useful for understanding how systems respond to different frequency inputs and for designing controllers.
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