Zero is mentioned twice, and if you take a glance at the other plots, they all have 3 dots above them, whereas answer choice B has 2 which is what we’re looking for.
For this case, the first thing we must do is define variables. We have then: x: number of checks. y: total cost. We now write the linear function that represents the problem. We have then: Then, Jerome issues 10 checks in a month. Therefore, we evaluate the function for x = 10. We have then: Answer: a monthly checking account will cost him about: y = 12.5 $