Toward what audience does MLK direct his "I Have a Dream" speech, and how does he appeal to this audience with specific quotes or examples?

King's
"I Have a Dream Speech" is split into three sections. In the first part, he primarily
addresses his white audience members. In the second part, he speaks directly to the black
community. In the third part, he addresses both races equally. The speech shows he is conscious
that there are two Americas, one comprised of whites and one of blacks. These groups, he
explains, have had very different experiences.

In the first part, he appeals
to white audiences, stating that one hundred years after gaining freedom, blacks still
"languish" in terms of economic equality and social justice. He says that this
situation is wrong and asks whites to make good on their promise to fully include blacks in
society. He says that whites keep writing blacks a check that comes back marked
"insufficient funds." What he means is that whites keep promising but ultimately
denying blacks the opportunities that whites have. As King says,