.” I am happy to join with you today in what will go down in history as the greatest demonstration for freedom in the history of our nation“
pathos
”It is a dream deeply rooted in the American dream. And so even though we face the difficulties of today and tomorrow, I still have a dream.“
logos
America has given the Negro people a bad check, a check which has come back marked 'insufficient funds'' ''
he is using ethos right here because MLK initial words are a call for unity and to take a united stand against discrimination and this gives ethical appeal. This is figurative language because he is exagerating about this being the best spech ever.
He uses pathos here to appeal to his entire audience and the Martin Luther Kings idea of the American dream is that everyone deserves freedom and equality which is a thing people can relate to. This can be repetition because he keeps repeating the word dream and saying he has a dream.
He is using logos right here because hes talking about a bad check and comparing it to the evidence to the black people not having a fair chance of being cheated with money. This is loaded language because of bad checks to symbolically show that they are not giving the same rights.