Use Matrices to Solve the System of Equations $\left\{ \begin{array} { l } 4 x + 4 y = 16 \\- x - y = - 4\end{array} \right.$

question 142

Multiple Choice

Use matrices to solve the system of equations. $\left\{ \begin{array} { l } 4 x + 4 y = 16 \\- x - y = - 4\end{array} \right.$

• A) (4,16)
• B) (16,4)
• C) (-4,-16)
• D) no solution
• E) infinitely many solutions

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Definitions:

UV Absorption

The process by which a substance absorbs ultraviolet light and thereby undergoes a transition from a lower to a higher energy state.

Vitamin

Organic compounds required in small amounts for essential metabolic reactions in living organisms, typically not synthesized by the organism itself.

UV-visible Energy

Electromagnetic energy in the ultraviolet to visible spectrum, crucial for processes like photosynthesis and often used in spectroscopy for analyzing substances.

Electronic Transitions

Describes the movement of electrons between energy levels within an atom or molecule, commonly observed in spectroscopy.