Because there is a vowel in front of the y
For the introductory paragraph, you should start by introducing broad ideas about the subject at hand. In this particular case, it would be a good idea to provide some background information about Sonia Nazario and maybe a little bit of information about his biographies and editorials. Nothing in your introductory paragraph should compare or contrast the two at all...you should save this for your body paragraphs. Make sure your thesis statement is the very last sentence of your introductory paragraph...this is the most important thing when it comes to most English teachers.
