What is the monotone f(x)=x^2-4x-12 ?

The monotone f(x)=x^2-4x-12 is Decreasing:-infinity <x<2,Increasing:2<x<infinity

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monotone f(x)=x^2-4x-12

monotone

Decreasing : - \infty < x < 2, Increasing : 2 < x < \infty

Solution steps

f^{'} (x) = 2 x - 4

Find intervals:

Decreasing

: - \infty < x < 2,

Increasing

: 2 < x < \infty

Decreasing : - \infty < x < 2, Increasing : 2 < x < \infty

What is the monotone f(x)=x^2-4x-12 ?
The monotone f(x)=x^2-4x-12 is Decreasing:-infinity <x<2,Increasing:2<x<infinity