Get detailed and reliable answers to your questions with IDNLearn.com. Find reliable solutions to your questions quickly and accurately with help from our dedicated community of experts.

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

Sagot :

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

[tex] |x + 4| \: is \: always \: positive[/tex]

[tex]solve \: x + 4 > 0[/tex]

[tex]x > - 4[/tex]

[tex]f(x) \: is \: incresing \: from \\[/tex]

]-4,∞[