I received my high school diploma in 2007. I started university studying engineering that year, but was not able to graduate and receive a diploma in engineering after four years. I switched to Business Administration and will receive my diploma with a Bachelor's of Business Administration in October, 2013.
Given that it's taken 6 years to finish a 4-year degree, and I have been at school the whole time, what are some strategies for minimizing the negative image it may give to employers? Should I leave off my high school graduation date from my resume? Use the 4 years of engineering as a selling point? Address this issue in my cover letter only? Not bring it up and only address it if it comes up in an interview?