Question

What is the solution set of |x| < 15?

x < 15

x > –15 and x < 15

x > –15

x < –15 or x > 15

Answer 1

Hint:

If

|x| < k

then

-k < x < k

where k is any positive number

Answer 2

You can break up -k < x < k into

x > -k and x < k

Answer 3

thanks !

Answer 4

np