When is it appropriate to model data with a linear function? give a example of world data that can be modeled with a linear function include the linear function and a sample of the data

You can model a data using a linear function when the dependent variable is a multiple of the independent formula plus another constant by the y-intercept. The constant multiple is represented by the slope. In real life problems, linear function is applied when you want to determine the cost given with a slope which is represented by cost per unit time. For example, the cost of wifi connection is $10/month plus $2 inclusive for phone charges. The linear function would be:

C = 10t + 2
where C is the cost and t is time in months
The graph for this linear function is shown in the attached picture.