How is locating - 1.5 on a number line the same as locating 1.5 on a number line? How is it different?

It’s the same in the sense that 1.5 and - 1.5 are the same distance away from 0 - they have he same * absolute value*. It’s different in * where * you look. 1.5 is 1.5 to the * right * of 0, while - 1.5 is 1.5 to the * left * of zero.