What Inputs Are Defined for the Expression $$\frac { 9 x } { x ^ { 2 } - 9 x + 18 }$$

question 7

Multiple Choice

What inputs are defined for the expression? $$\frac { 9 x } { x ^ { 2 } - 9 x + 18 }$$

• A) \(R , x \neq 3 , x \neq 5\)
• B) \(R , x \neq 2 , x \neq 9\)
• C) \(R , x \neq 5 , x \neq 7\)
• D) \(R , x \neq - 2 , x \neq - 9\)
• E) \(R , x \neq 3 , x \neq 6\)

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Definitions:

Algebraic Expression

A mathematical phrase that can contain ordinary numbers, variables, and operators, but does not have an equals sign.

Difference

The result of subtracting one number from another.

Algebraic Expression

An expression built up from integer constants, variables, and the algebraic operations (such as addition, subtraction, multiplication, and division).

Algebraic Expression

A mathematical phrase that can contain ordinary numbers, variables, and operation symbols but does not have an equal sign.