a young person should sleep 8 hours plus 1/4 hour for each year the person is under 18 years of age. Assuming that the relation is linear. Write the equation relating hours of sleep y and age x.

The number of hours of video uploaded to YouTube per minute is shown in the table below. Year # of hours of video uploaded per minute 2007 6 2008 10 2009 20 2010 24 2011 48 2012 60 2013 100   Let y be the video upload rate at x years since 2005.   Construct a scatterplot by hand.               Is the relationship linear or exponential?  Increasing or decreasing?   Write an equation modeling the number of hours of video uploaded per minute if the initial number of hours is 2.6 and it increases by 59%.     Use your equation to find the number of hours uploaded in 2015.

Tom is driving to Seattle. Suppose that the distance to his destination (in miles) is a linear function of his total driving time (in minutes). Tom has 54 miles to his destination after 49 minutes of driving, and he has 33.2 miles to his destination after 75 minutes of driving. How many miles will he have to his destination after 91 minutes of driving?

In 1990, the population of Bend, Oregon was 722. In 2000, the population had grown to 977.  Using the data above, give an equation that models the population "P" of sisters as a function of time "t."