Find the missing entries and then plot the linear graph for the following data.

$x$	$3$	$6$	_____	$15$	_____
$y$	$4$	_____	$12$	_____	$24$

 

The following table shows the sides and corresponding perimeters of some squares. Draw the graph for the given data.

Draw a line graph depicting the sales of a salesman during weekdays:

Plot the points $\mathrm{A}\left(0, 0\right); \mathrm{B}\left(0, 4\right) \text{and} \mathrm{C}\left(5, 0\right)$ on the graph paper and join B to C. Find the area of the figure so obtained.

The following graph shows the temperature of a solution recorded over a period of time.

Which point depicts the maximum temperature?

The following graph shows the temperature of a solution recorded over a period of time.

What is the difference in temperatures at the end of $40 \mathrm{seconds}$ and $70 \mathrm{seconds}$?