A young couple purchases their first new home in 2007 for $115,000. They sell it to move into bigger home in 2014 for $150,000. now we will look at this situation from a linear perspective. we looked at linear depreciation earlier this semester; this will build on that. this model will have the form y=mx+b where x is years since 2007 and y is the value of the home in thousands of dollars. what is the slope of the line? what does that number mean?