Line graphs show the change in something by drawing a line to connect dots that show values. Line graphs are very good at showing changes over time. For example if you wanted to graph the number of times you through different balls through a hoop and showed your score out of ten it would look something like this
1.First you must have something you want to graph in this example, we graphed the score out of ten we got by throwing different balls through a hoop. You need to have variables in your graph, or it wont be very good. One thing you could graph is the temperature on different days to find out the weather pattern of your area. Up and along the side their needs to be some sort of numbers that represent something so you can have your lines go up and down to show the difference. These numbers are usually time, people, or scores. Then you need to have something along the bottom this is what you are going to compare.