Compute and Simplify the Difference Quotient $$\frac { f ( x + h ) - f ( x ) } { h } , h \neq 0$$

question 384

Multiple Choice

Compute and simplify the difference quotient $$\frac { f ( x + h ) - f ( x ) } { h } , h \neq 0$$
- $$f ( x ) = \frac { 20 } { x + 15 }$$

• A) \(\frac { 20 } { ( x + h + 15 ) ( x + 15 ) }\)
• B) \(- \frac { 20 } { ( x + 20 ) ^ { 2 } }\)
• C) \(- \frac { 20 } { ( x + h + 15 ) ( x + 15 ) }\)
• D) \(- \frac { 300 } { ( x + h + 15 ) ( x + 15 ) }\)

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