Question

Solve the following equations graphically.
$\begin{array}{c}2x+y=6\\ 2x-y+2=0\end{array}$

Answer 1

$2x+y=6$ $\Rightarrow$ $2x+y=6$

$2x-y+2=0$ $2x-y=-2$
$2x+y=6$

$x$	$3$	$0$
$y$	$0$	$6$

$2x-y=-2$

$x$	$-1$	$0$
$y$	$0$	$2$

From the graph, Sol is $(x,y)=(1,4)$