Do you know what the right answer is? I haven't done this stuff since high school. So, I could be wrong. I thought I'd warn you in advance. ;)
I am not sure if this is how you do the problem, but this is how I did it: I plugged in x-values to each equation until I found the one that fit the graph. The shading I believe represents the side of the line that we would like to have a y-coordinate on. I attached a screenshot of my work. Hope it makes sense!
Answer: try checking your Wifi source and reopen the site if it's an app delete it then reinstall it another thing you can try is to restart your device or ask an IT in your family or one you know for help hope this works! :D