Find the intervals on which the function is increasing and the intervals on which the function is decreasing.
-$$f ( x ) = \frac { 1 } { 2 } x ^ { 2 } - 2 x - \frac { 7 } { 2 }$$
A) Increasing on $( - 5 , \infty )$; decreasing on $( - \infty , - 5 )$
B) Increasing on $( - 1 , \infty )$; decreasing on $( - \infty , - 1 )$
C) Increasing on $( - 1 , \infty )$, decreasing on $( - \infty , - 1 )$
D) Increasing on $( 2 , \infty )$, decreasing on $( - \infty , 2 )$

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The Answer of Find the intervals on which the function is increasing and the intervals on which the function is decreasing.
-$$f ( x ) = \frac { 1 } { 2 } x ^ { 2 } - 2 x - \frac { 7 } { 2 }$$
A) Increasing on $( - 5 , \infty )$; decreasing on $( - \infty , - 5 )$
B) Increasing on $( - 1 , \infty )$; decreasing on $( - \infty , - 1 )$
C) Increasing on $( - 1 , \infty )$, decreasing on $( - \infty , - 1 )$
D) Increasing on $( 2 , \infty )$, decreasing on $( - \infty , 2 )$

Find the Intervals on Which the Function Is Increasing and the Intervals