This problem is asking what numbers are within 1 of zero in either direction on the number line. Remember, those vertical lines surrounding a number are asking for its **absolute value**. When you have got a number surrounded, it will pretty much tell you anything you want to know. In this case, *y* can be any real number between - 1 and 1. In symbols, the answer to this problem is - 1 ≤ *y* ≤ 1. | |