Slope of this question please and thank you :)

Me asap! what is the slope of this line? enter your answer in the box.

Aline passes through the point (–7, 5) and has a slope of 1/2 which is another point that the line passes through?

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?