The rhetorical devices used in a speech aim to persuade the public to agree with the arguments presented by the speaker.
You did not show the speech that this question refers to, nor did you show the graph that this question cites. For this reason, I cannot show you specifically how the author of the speech used rhetorical devices, but I will show you how to identify them.
First, it will be necessary for you to read the entire speech and understand the arguments that the speaker presents and how he proves these arguments. In this reading, you will be able to identify the rhetorical devices, known as pathos, ethos, and logos, as follows;
- Pathos: Pathos can be identified when the author presents very emotional arguments that stimulate people's sentimentality. The purpose of using this device is to persuade people through their emotions. This can be done with arguments that show overcoming difficulties, suffering, passions, or that show a type of emotion.
- Ethos: Ethos can be identified in arguments that encourage morals and ethics, that is, that present very definite concepts about what is right or wrong. In this case, the author aims to convince listeners and readers by stimulating their moral sense. This can be done through political arguments, which present correct or incorrect behavior and positions.
- Logos: Logos is identified through arguments that stimulate logical reasoning. The author aims to show how logical arguments are easily developed and correct. This stimulates thinking and inferences in listeners or readers.
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