### Home > CCA > Chapter 1 > Lesson 1.1.3 > Problem 1-29

1-29.

Mr. Guo is thinking of a number. When he takes the absolute value of his number, he gets 15. What could his number be? Is there more than one possible answer? Homework Help ✎

Remember that the absolute value of a number is its distance from zero on the number line and it is always positive.

Can more than one number have the same absolute value? How is that possible?

Either 15 or −15. Make sure you understand why.