Use a graphing calculator to Express solutions with approximations to the nearest thousandth.
-$$\begin{array} { l }
3 x + 4 y + z = 6 \
3 x - 3 y - z = 22 \
5 x + y + 4 z = 19
\end{array}$$
A) $\{ ( - 1 , - 2,5 ) \}$
B) $\{ ( 5 , - 2 , - 1 ) \}$
C) $\varnothing$
D) $\{ ( 5 , - 1 , - 2 ) \}$

Question

Use a graphing calculator to Express solutions with approximations to the nearest thousandth.
-$$\begin{array} { l } 
3 x + 4 y + z = 6 \
3 x - 3 y - z = 22 \
5 x + y + 4 z = 19
\end{array}$$
A) $\{ ( - 1 , - 2,5 ) \}$
B) $\{ ( 5 , - 2 , - 1 ) \}$
C) $\varnothing$
D) $\{ ( 5 , - 1 , - 2 ) \}$

Quizplus · Accepted Answer

Using a graphing calculator to solve the system of equations, the solution is approximately (5, -2, -1).

Use a Graphing Calculator to Express Solutions with Approximations to the Nearest