Give equations of four lines passing through point $(-2,4)$
$x+y=2$
$x-y=-6$
$2 x+y=0$
$x+2 y=6$
If the point $(2,3)$ lies on the graph of the equation $3 x+a y=18,$ find the value of $a$.
For what value of $c,$ the linear equation $2 x+c y=8$ has equal values of $x$ and $y$ for its solution.
If $(3,2)$ is one of the solutions of $5 x-a y=7,$ then $a=\ldots \ldots \ldots$
Graph of equation $0 x+3 y=21,$ is perpendicular to which axis ?
Write whether the following statements are True or False? Justify your answers:
The graph of the linear equation $x+2 y=7$ passes through the point $(0,7).$
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