Any solution of the linear equation $2x + 0y + 9 = 0$ in two variables is of the form:

The autorickshaw fare in a city is as follows: For the first kilometre,the fare is ₹ $10$,and for the subsequent distance,it is ₹ $3$ per $km$. Taking the distance covered as $x$ $km$ and the total fare as ₹ $y$,write a linear equation for this information and draw its graph. Find the total fare for a journey of $4$ kilometres from the graph.

If $(2, -3)$ is a solution of the equation $3x + ky = 18$,find the value of $k$.

The graph of the equation $3x = 10$ is parallel to which axis?

Write four solutions for the following equation: $2x + 3y = 7$.

The equation $2x + 5y = 7$ has a unique solution,if $x, y$ are: