Solve the System $$\begin{array} { l } y = \frac { 1 } { 7 } x - 4 \\x - 7 y = 1\end{array}$$

question 60

Multiple Choice

Solve the system. $$\begin{array} { l } y = \frac { 1 } { 7 } x - 4 \\x - 7 y = 1\end{array}$$

• A) \(( - 13 , - 2 )\)
• B) \(( 7 , - 3 )\)
• C) Infinitely many solutions; \(\left\{ ( x , y ) \mid y = \frac { 1 } { 7 } x - 4 \right\}\); dependent system
• D) No solution; { } ; inconsistent system

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Definitions:

Expected Monetary Value

Expected Monetary Value (EMV) is a concept in decision-making that calculates the anticipated wealth from an investment or decision under uncertainty.

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EVSI

Expected Value of Sample Information, a concept in decision theory that quantifies the value of gathering additional information before making a decision.