Find the Intervals on Which the Given Function Is Increasing $\text { Increasing on } [ 0 , \infty ) \text { and decreasing on } ( - \infty , 0 ]$

Multiple Choice

Find the intervals on which the given function is increasing and the intervals on which it is decreasing. f ( x ) = x ² + 7

A) $\text { Increasing on } [ 0 , \infty ) \text { and decreasing on } ( - \infty , 0 ]$ .
B) $\text { Increasing on } ( - \infty , 0 ] \text { and decreasing on } [ 0 , \infty )$ .
C) $\text { No correct answer }$ .