Write an Equivalent Expression $$4 + x y$$ A) $x y + 4$

question 40

Multiple Choice

Write an equivalent expression. Use a commutative law.
- $$4 + x y$$

• A) \(x y + 4\), or \(4 + y x\)
• B) \(4 + x + y\)
• C) \(4 x y\), or \(4 y x\)
• D) \(4 ( 1 + x y )\)

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Definitions:

Pivot Joint

A type of synovial joint that allows rotation around a single axis, such as the joint between the first and second cervical vertebrae in the neck.

Forearm

The part of the arm between the elbow and the wrist.

Supination

The rotational movement of the forearm or foot that results in the palm or sole facing upwards or forwards.

Pronation

The rotation of the hand or forearm so that the palm faces downwards or backwards, or the inward roll of the foot during normal motion.