Solve the system of equations by graphing. $$\left\{ \begin{array} { l }
4 x - 9 y = - 60 \
2 x + 9 y = 78
\end{array} \right.$$
A)(11,-4)
B)(-3,-8)
C)(3,8)
D)(-5,12)
E)(8,3)

Question

Solve the system of equations by graphing.​ $$\left\{ \begin{array} { l } 
4 x - 9 y = - 60 \
2 x + 9 y = 78
\end{array} \right.$$ ​
A)(11,-4)
B)(-3,-8)
C)(3,8)
D)(-5,12)
E)(8,3)

Quizplus · Accepted Answer

By graphing the system of equations, we find that the two lines intersect at the point (3,8). This is the only point that satisfies both equations, and therefore is the solution to the system. The other answer choices do not lie on both lines and do not satisfy both equations.

Solve the System of Equations by Graphing {4x−9y=−602x+9y=78\left\{ \begin{array} { l } 4 x - 9 y = - 60 \\2 x + 9 y = 78\end{array} \right.{4x−9y=−602x+9y=78​

Solve the System of Equations by Graphing $\left\{ \begin{array} { l } 4 x - 9 y = - 60 \\2 x + 9 y = 78\end{array} \right.$