A researcher surveyed 8 people to see if there is a relationship between years of education and starting salaries. The data points are shown on the graph. Which best represents the equation of the trend line shown on the graph? (Note that the graph has a break on the x-axis.)
y = 0.25x + 15
y = 0.25x + 17.5
y = 1.25x – 10
y = 1.25x + 7.5

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label?