Linear Equality Applied in Real Life Essay

From the real life situation expound in the prior DQ 1, I implant out the form of the equation that dejection be used to analyze situations wherein decisions put atomic number 53 over to be made. This linear equation is that of the be given y = ax + b, wherein x is the item-by-item value and its value is rigid. In the conundrum 40, the x denotes the fixed rate for separately minute used. The variable a is the derive of proceeding consumed for the call and b is the fixed amount the company charged upright for using the service.The variable y is the dependant variable and the total amount for the exclusively service, depending on the number of minutes used. meet 1, based on problem 40 (McGraw-Hill Companies, 2005) will help to further lucubrate the use of the equation. Based on the graph, smart set A costs much than caller-up B up until a certain(p) point, which is when the sum of the calls Rafaella made in one calendar month was 45 minutes. On the different hand, when she made 60 minutes charge of calls in one month, it is seen that go with B started to become a bit more expensive than telephoner A.Thus, based on the results, Rafaella should choose based on her give birth estimate of her usage of long-distance calls. If shell seldom make calls or call for hardly a few minutes apiece month, she should stay subscribed at Company B. However, if she thinks that her total calls would exceed 60 minutes per month, then it is advisable for her to subscribe to Company A. Table 1. Total charges for total minutes of of long-distance calls in one month for Company