The graph of the equation $3x + 7y = k$ is a line passing through the origin. Then,$k = \ldots$

The graph of the linear equation $2x + 3y = 6$ is a line which meets the $x$-axis at the point

The following values of $x$ and $y$ are thought to satisfy a linear equation:

$x$	$1$	$2$
$y$	$1$	$3$

Draw the graph,using the values of $x, y$ as given in the above table.
At what point does the graph of the linear equation:
$(i)$ cut the $x$-axis?
$(ii)$ cut the $y$-axis?

The positive solutions of the equation $ax + by + c = 0$ always lie in the

Solve the equation $2y + 1 = y + 4$ and represent the solution$(s)$ on $(1)$ the number line $(2)$ the Cartesian plane.

State whether the following statement is True or False. Justify your answer:
The graph of every linear equation in two variables need not be a line.