Which one of the following points lies on x-axis ?

How do you determine whether a relationship represented as as graph is linear or nonlinear

Im literally having a mental breakdown

One of every 20 customers reports poor customer service on your company’s customer satisfaction survey. you have just created a new process that should cut the number of poor customer service complaints in half. what percentage of customers would you expect to report poor service after this process is implemented? 1.) 5% 2.) 10% 3.) 2% 4.) 2.5%