$1.$ In the following scenario, a group of engineers are working on creating a tray that can be used as an accessory in the car under the headrest where passengers in the back seat can use it as a tray, cup holder, and phone holder at the same time. The phone holder part includes a wireless phone charger. To make sure that the product is working as intended they performed different tests and got the following data: I need help with the line chart for e$.$