explore an application of linear equations in two variables.

Scenario – A service plan of a telephone company offers unlimited minutes and texts and charges extra for internet data. The plan satisfies the equation

y= 1.5 x + 35

The “y” represents the total monthly cost (in dollars) for the plan and the “x” represents the amount of data used in the month (in gigabytes GB).


Review the scenario above and answer the following questions:

If you do not use data, what is the base monthly price of the plan?

If you have a monthly budget of $40 for cellphone expenses, how much data can you afford (in GB)?

Find the y-intercept of the line defined by the given equation and explain what it means in the context of the problem.

Find the slope of the line and explain what it meaawzns in the context of the problem.