Suppose a vine maple grows in height linearly. Four weeks after it is planted it stands 7.8 inches, and after nine weeks it is 13.8 inches tall. Write an equation that models the growth, in inches, of thevine maple as a function of time, in weeks.1) What is the slope of the function?2) How tall was the tree when it was first planted?3) Write the function4) How tall will the vine maple be after 16 weeks?