PLZ REPORT MEEE IM DEPRESSED AND IDC BOUT MY LIFE

At the beginning of a call to the cable company, a message tells customers, "after you finish talking to our customer service representative, you will be asked to take a five-question survey about the level of service you recieved. it would be appreciated if you could stay on the line to answer the survey questions." what type of sampling is the cable company using?

Graph the linear equation find three points on the graph -x+2y=11

What are the coordinates of a vertex of the hyperbola?