Question

You consider buying a phone from one of two cell phone carriers. The table shows the total costs (in dollars) of the phone and service for different numbers of months at Carrier A. The total cost $y$y​ (in dollars) of the phone and x$x$x​ months of service at Carrier B is represented by the equation y is equal to 55 x plus 300$y=55x+300$y=55x+300​ . Which carrier has the lower initial fee?

Answer 1

Carrier B

Explanation:

The linear equation that represents Carrier B is y=55x+300. it's a linear equation so 55 represent the monthly fee and 300 represents the initial fee. So the initial fee of carrier B is 300. In case of Carrier A, the total cost increases by $150 as months increases by 3. So The initial fee of Carrier A is 500-150=$350 . Hence, Carrier B has lower initial fee.