$$\text { If } f ( x ) = x ^ { 2 } - x + 6 , \text { evaluate the difference quotient } \frac { f ( a + h ) - f ( a ) } { h }$$

Short Answer

$$\text { If } f ( x ) = x ^ { 2 } - x + 6 , \text { evaluate the difference quotient } \frac { f ( a + h ) - f ( a ) } { h }$$