I’m going into my senior year of high school so at the end of last year I asked 2 teachers for rec letters. The only thing is I’m interested in business for college and I asked my physics teacher and a teacher who I worked with for 2 years on a science related project (who also teaches physics and computer science). Will this affect the way schools look at me? Even though I think those teachers know me best, will it make schools think I’m less interested in business?
The short answer is go with what you have - those will be outstanding.
The longer answer: The purpose of a rec is for a teacher to communicate your diligence, aptitude, and intellectual curiosity to an admissions office. Thus, the best recs are from faculty members who (1) know you well enough to discuss with specificity how you exhibit those three traits, which entails (2) teaching / engaging with you in a challenging subject matter through which those traits can become evident.
No high schools have “business” courses that offer any sort of challenge (economics isn’t considered ‘business’). Thus, even if your high school had “business” courses (I have no idea what that would consist of - maybe an intro to accounting class where students with any sort of work ethic get a 98 or above?), those wouldn’t provide challenging enough subject matter, and so would fail condition (2).
Your first rec seems a safe bet for condition (1) because physics is a challenging subject. Your second rec seems a safe bet for condition (1) because you worked with the science / computer science teacher over a period of 2 years, which gave that teacher a great chance to get to know you.
More relevant info: In the business world, people who get investment banking jobs after undergrad are those who excel at math, science, and computer science. Your recs are from physics and science / computer science teachers. This will earn you respect from competitive business schools.