What Inputs Are Defined for the Expression $$\frac { x } { 9 x + 4 }$$

question 3

Multiple Choice

What inputs are defined for the expression? $$\frac { x } { 9 x + 4 }$$

• A) \(R , x \neq - \frac { 9 } { 4 }\)
• B) \(R , x \neq \frac { 4 } { 9 }\)
• C) \(R , x \neq - \frac { 4 } { 9 }\)
• D) \(R, x \neq \frac { 9 } { 4 }\)
• E) \( R , x \neq 0\)

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