Answer:
Explanation:
To graph the monthly cost of the two cell phone plans, you can create a coordinate plane with the x-axis representing the number of gigabytes of data and the y-axis representing the cost in dollars.
First, you can plot the point for the "Talk-it-up" plan. Since this plan has a fixed monthly cost of $95, you can plot this point at the y-intercept, which is the point where the line intersects the y-axis. This point would be (0,95).
Next, you can plot the points for the "Talk-is-cheap" plan. This plan has a fixed monthly cost of $35 for unlimited text and talk, and an additional cost of $10 per gigabyte of data. To plot these points, you can start at the y-intercept (0,35) and then add $10 to the y-coordinate for each additional gigabyte of data. For example, if the plan includes 1 gigabyte of data, the point would be (1,45). If the plan includes 2 gigabytes of data, the point would be (2,55), and so on.
You can continue plotting points for the "Talk-is-cheap" plan until you have a complete line. Then, you can compare the two lines to see how the cost of each plan changes as the amount of data increases.