Final answer:
A line graph is the most appropriate choice for visualizing the relationship between the amount of salt added and the corresponding boiling temperature changes.
Step-by-step explanation:
The most suitable graph to represent the relationship between the amount of salt added and the boiling temperature is a line graph. A line graph will clearly show how boiling temperature changes as more salt is added.
The data points can be plotted on the graph with the amount of salt on the x-axis and the boiling temperature on the y-axis. As you connect the data points,
you can observe the trend or pattern in how the boiling point is affected by salt addition.