To create a Facebook page for your business, go to https://www.facebook.com/pages/create/. You’ll be asked to choose among different page types (it sounds like you would choose ‘Brand/Product’ and then either ‘Website’ or ‘Product/Service’) and add your business name, which may or may not be available.
You’ll then fill out various info about your business, including a short description (which displays on the page), website URL, any location/contact info, etc. It will be especially important to add an avatar image for the page (shoot for 180×180) and a timeline cover photo (851×315). The avatar should be your business logo, while the cover photo should reflect something about your business (but should generally not include promo text). The cover photo will appear in the news feed when people like your page.