Question

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?

Answer 1

okay so do you know what an absolute value is?

Answer 2

@heyhihey You still here?

Answer 3

Absolute Value is the number it takes to get from 0 to the number you want the absolute value of.

Answer 4

so it takes 15 from 0-15

Answer 5

"takes?"

Better: "the absolute value function returns the result 15 when the input is either -15 or 15.

Try it.

What is |-15|?
What is |15|?