4. At the same time each month over a one year period, John recorded the height of a tree he had
planted. He then calculated the average growth rate of
the tree. The height h in inches of the tree during this
period was given by the formula h = 1.77 | 28, where
t is the number of months since he recorded the first
height. What are the slope and y-intercept of this line
and what do they signify?