Use a graphing calculator to solve the system. Express solutions with approximations to the nearest thousandth.
-$$\begin{array} { r }
1.2 x + \sqrt { 7 } y = - 8 \
- 4.5 x - \sqrt { 5 } y = 10
\end{array}$$
A) $\{ ( 0.584 , - 3.290 ) \}$
B) $\varnothing$
C) $\{ ( - 0.929 , - 2.602 ) \}$
D) $\{ ( 4.808 , - 5.205 ) \}$

Question

Use a graphing calculator to solve the system. Express solutions with approximations to the nearest thousandth.
-$$\begin{array} { r } 
1.2 x + \sqrt { 7 } y = - 8 \
- 4.5 x - \sqrt { 5 } y = 10
\end{array}$$
A) $\{ ( 0.584 , - 3.290 ) \}$
B) $\varnothing$
C) $\{ ( - 0.929 , - 2.602 ) \}$
D) $\{ ( 4.808 , - 5.205 ) \}$

Quizplus · Accepted Answer

Using a graphing calculator to solve the system of equations, the solution is approximately $x = -0.929$ and $y = -2.602$, which matches choice C.

Use a Graphing Calculator to Solve the System 1.2x+7y=−8−4.5x−5y=10\begin{array} { r } 1.2 x + \sqrt { 7 } y = - 8 \\- 4.5 x - \sqrt { 5 } y = 10\end{array}1.2x+7​y=−8−4.5x−5​y=10​

Use a Graphing Calculator to Solve the System $\begin{array} { r } 1.2 x + \sqrt { 7 } y = - 8 \\- 4.5 x - \sqrt { 5 } y = 10\end{array}$