gaokao 2004 Q10

gaokao · China · shanghai-science Modulus function Differentiability of functions involving modulus

10. If the function $f ( x ) = a | x - b | + 2$ is increasing on $[ 0 , + \infty )$, then the range of real numbers $a$ and $b$ is $\_\_\_\_$.

10. If the function $f ( x ) = a | x - b | + 2$ is increasing on $[ 0 , + \infty )$, then the range of real numbers $a$ and $b$ is $\_\_\_\_$.\\