Find the interval in which the function f(x) = |x + 4| is increasing.

asked Jan 3, 2023 24.0k views

17 votes

7.6k points

Please log in or register to add a comment.

10 votes

$f { }^( - ) (x) = \frac{2(x + 4)}{2 |x + 4| {}^{} } = (x + 4)/( |x + 4| )$

$|x + 4| \: is \: always \: positive$

$solve \: x + 4 > 0$

x > - 4

$f(x) \: is \: incresing \: from \\$

Bruce Afruz answered Jan 6, 2023

7.2k points

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

7.6m questions

10.1m answers