Use Cramer's Rule to Solve (If Possible) the System of Equations

question 247

Multiple Choice

Use Cramer's Rule to solve (if possible) the system of equations. $$\left\{ \begin{array} { l } 4 x - 3 y = - 30 \\6 x + 9 y = - 18\end{array} \right.$$

• A)(-6, 2)
• B)(6, -2)
• C)(6, 2)
• D)(2, -6)
• E)(-6, -2)

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Definitions:

Universal Motor

An electric motor that can operate on both AC and DC power sources, often found in portable power tools and appliances.

Neutral Plane

The point at which there is no voltage induced in the armature of a motor or generator.

Voltmeter

An instrument used for measuring the potential difference, in volts, between two points in an electric circuit.

Minimum Reading

The lowest value or measurement that can be accurately read or determined by a given instrument or method.