Evaluate the Function $r ( x ) = \frac { 3 } { x - 4 }$

question 75

Multiple Choice

Evaluate the function.
-If $r ( x ) = \frac { 3 } { x - 4 }$ , find $r ( a + 5 )$

• A) \(- \frac { 3 } { 4 } a - \frac { 15 } { 4 }\)
• B) \(\frac { 3 } { a - 4 } + 3\)
• C) \(\frac { 8 } { a - 4 }\)
• D) \(\frac { 3 } { a + 1 }\)

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Definitions:

Methyl-β-D-Talopyranoside

A chemical compound that is a methyl glycoside derived from the β-anomer of D-talopyranose.

Chair Form

A specific, stable conformation of cyclohexane that minimizes steric strain, resembling a chair.

D-Talose

A type of sugar, specifically a monosaccharide, that is part of the aldohexose family and is known for its optical activity.

Methyl β-D-Talopyranoside

A methyl glycoside formed from the β-D-Talopyranose form of talose, demonstrating how sugars can be chemically modified to glycosides.