Complete all problems on a separate sheet of paper On graph paper, plot the graph of the given equation in the indicated domain. State the domain and range in interval notation and determine if it is a function. (Graph without calculator first. Use calculator to check your work, if possible.)

To unstick the pages of a water-damaged or worn-out book, a very thin sheet of a hard material must be used. Using this sheet, force has to be applied gradually, starting from the inside of the pages and progressing outwards. Get a thin, hard sheet. To apply adequate force to separate the pages, get a thin sheet of a strong, rigid material.